Question 3 (20points) Solve the quadratic equation using the quadratic -x2+8x=7 Question Question 3 (20points) Solve the quadratic equation using the quadratic -x2+8x=7 in progress 0 Math Sarah 3 weeks 2021-09-24T15:59:59+00:00 2021-09-24T15:59:59+00:00 1 Answer 0

## Answers ( )

Answer:x = 7 or x = 1

Step-by-step explanation:For this equation: a=-1, b=8, c=-7

−1×2+8x+−7=0

Step 1: Use quadratic formula with a=-1, b=8, c=-7.

x= ( −b±√b2−4ac

)/2a

x=

(−(8)±√(8)2−4(−1)(−7))/ (2(−1)

)

x= (−8±√36

)/-2

x=1 or x=7