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matrenka [14]
4 years ago
14

Brain is solving the equation x^2 - 3/4x = 5. What value must be added to both sides of the equation to make the left side a per

fect-swuare trinomial
A) 9/64

B) 9/16

C) 3/4

D) 9/4
Mathematics
1 answer:
katrin2010 [14]4 years ago
6 0
To make a square for x²+bx=c, add( \frac{1}{2} b)²on both side
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side. 
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