9514 1404 393
Answer:
Step-by-step explanation:
Put the numbers where the letters are and do the arithmetic.
h - g = 3 - (-7) = 3 + 7 = 10
g² - h = (-7)² -3 = 49 -3 = 46
g + h² = -7 +3² = -7 +9 = 2
gh = (-7)(3) = -21
g - h = -7 -3 = -10
g + h = -7 +3 = -4