2 years ago

What is the value of c so that y+x^2+9x+c is a perfect square triangle?

Mathematics

1 answer:

Alona [7]2 years ago

4 0

x^2 - 9x + c
=x^2 - 2(x)(9/2) + (9/2)^2 is a perfect square
Therefore b = (9/2)^2 = 81/4
Ans: 81/4

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