Question

Find the value or values of p in the quadratic equation p2 + 13p – 30 = 0.

A. p = –15, p = 2
B. p = 10, p = 3
C. p = –10, p = –3
D. p = 15, p = 2

Answer 1

The answer would be A.

When solving a quadratic equation that equals 0, you would look for two numbers that when multiplied equal -30 but added together equal 13. Those numbers would be 15 and 2 (which eliminates B and C). The pair multiplied together has to equal -30 but when added has to equal +13. Meaning the answer would be A. P = -15, P = 2.

I hope this helps!