asmontgomery2 asmontgomery2

03-11-2022
Mathematics

Answered

quadratic formula, find x

x^2+8x=28
i find a= 1
b=8
c= -28

then apply x = (-b+-✓(b^2-4ac))/2a

I come up to x =(-8+-✓(16x11))/2 but then i am stuck.
can you help please?

Answer :

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