Question 3 (20points)
Solve the quadratic equation using the quadratic
-x2+8x=7
1 answer:
Answer:
x = 7 or x = 1
Step-by-step explanation:
For this equation: a=-1, b=8, c=-7
−1x2+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
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