Solve the quadratic 2p^2 - 8p - 7 = 0.

Question

This is my homework question. There will  be 2 answers, Write your answers as whole numbers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.

Answer 1

2p² - 8p - 7 = 0

 

Solve using the quadratic formula:

 

x = -(-8)/4 ± (1/4)√((-8)²-4(2)(-7))

 

x = 2 ± (1/2)√30

 

x ≅ -0.74 and 4.74