Identify Variables: Identify a, b, and c in the quadratic expression s2+10s+21. Compare s2+10s+21 with ax2+bx+c. a=1, b=10, c=21
Find Product and Sum: Find two numbers whose product is 21(a∗c) and whose sum is 10(b).Product: 1∗21=21, Sum: 1+21=22 (wrong pair)Product: 3∗7=21, Sum: 3+7=10 (correct pair)
Write Factored Form: Write the factored form using the numbers found.Factored form: (s+3)(s+7)
More problems from Factor quadratics with leading coefficient 1