What value of g will make the expression 4x2 – 18xy + g a perfect square?
- 9
- \(\frac{9y^2}{4}\)
- 81y^2
-
\(\frac{18y^2}{4}\)
The correct answer is: D
Explanation
4x2 - 18xy + g = g \(\to\) (\(\frac{18y}{4}\))2= \(\frac{18y^2}{4}\)