Question

g² - 3(h - g) - w² when g = 2, h = -3 and w = -7

Explanation:

Step1: Substitute values into expression

$2^2 - 3((-3) - 2) - (-7)^2$

Step2: Calculate exponents

$4 - 3(-5) - 49$

Step3: Compute multiplication

$4 + 15 - 49$

Step4: Final arithmetic

$-50$

Answer:

-50