Now that the equation has been factored, solve for x. If c is negative and b is positive, the larger factor will be positive and the smaller will be negative.Ģ.2: c = -14, a negative number, therefore one factor is negative and the other is positive.Ģ.3: b = 5, a positive number, therefore the larger factor will be positive and the smaller will be negative.Ĭreate two sets of parentheses each containing a x and one of the factors. If c is positive and b is negative, both factors will be negative. If both c and b are negative, the larger factor will be negative and the smaller will be positive. If both c and b are positive, both factors will be positive. Now create factor pairsĢ.3: Determine the factor pair that will add to give b. If c is negative then one factor will be positive and the other negative. If c is positive then both factors will be positive or both factors will be negative. Step 2: Determine the factor pair of c that will add to give b.įirst ask yourself what are the factors pairs of c, ignoring the negative sign for now. In these cases it is usually better to solve by completing the square or using the quadratic formula.This equation is already in the proper form where a = 1, b = 5 and c = -14. However, not all quadratic equations can be factored evenly. (1,180) (2,90) (3,60) (4,45) (5,36) (6,30) ģ.2: p = -180, a negative number, therefore one factor will be positive and the other negative.ģ.3: b = 24, a positive number, therefore the larger factor will be positive and the smaller will be negative.įactoring quadratics is generally the easier method for solving quadratic equations. Is negative then one factor will be positive and the other negative. This equation is already in the proper form where a = 15, b = 24 and c = -12. Step 1: Write the equation in the general form ax 2 + bx + c = 0. This equation is already in the proper form where a = 4, b = -19 and c = 12.ģ.2: p = 48, a positive number, therefore both factors will be positive or both factors will be negative.ģ.3: b = -19, a negative number, therefore both factors will be negative. Step 8: Set each factor to zero and solve for x. Using the reverse of the distributive property we can write the outside expressions (shown in red in Step 6) as a second polynomial factor. If this does not occur, regroup the terms and try again. Notice that the parenthetical expression is the same for both groups. Step 7: Rewrite the equation as two polynomial factors. Step 6: Factor the greatest common denominator from each group. Step 4: Rewrite bx as a sum of two x -terms using the factor pair found in Step 3. If p is negative and b is positive, the larger factor will be positive and the smaller will be negative.ģ.2: p = 12, a positive number, therefore both factors will be positive or both factors will be negative.ģ.3: b = 7, a positive number, therefore both factors will be positive. If p is positive and b is negative, both factors will be negative. If both p and b are negative, the larger factor will be negative and the smaller will be positive. If both p and b are positive, both factors will be positive. If p is negative then one factor will be positive and the other negative.ģ.3: Determine the factor pair that will add to give b. If p is positive then both factors will be positive or both factors will be negative. Step 3: Determine the factor pairs of p that will add to b.įirst ask yourself what are the factors pairs of p, ignoring the negative sign for now. c and find the factors of the result, let's call this p.This equation is already in the proper form where a = 3, b = 7 and c = 4. Step 1: Write the equation in the general form
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