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Len [333]
4 years ago
7

Joyce is trying to solve the equation y = x2 − 8x + 7 using the quadratic formula. she has made an error in one of the steps bel

ow. find the step where joyce went wrong. (1 point) step 1 step 2 step 3 step 4
Mathematics
1 answer:
marusya05 [52]4 years ago
3 0
Y = x2 − 8x + 7

-b+-√(b^2-4ac)/2a

a=1
b=8
c=7
-8+-√(8^2-4(1)(7)/2(1)
-8+-√(64-28)/2
-8+-6/2 x1=-8+6/2=-1 x2=-8-6/2=-7

x1=-1 x2=-7
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