Answer:
y=2sqrt(x+3)
Step-by-step explanation:
x² + 8
(f - g)(x)
= f(x) - g(x)
= 2x² + 1 - (x² - 7)
= 2x² + 1 - x² + 7 ← collect like terms
= x² + 8
x=3
2x + 31 = 5
2x = 5 - 31
2x = -26
x = -26/2
x = -13.
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The surface area of ball is 400π sq.cm
