Answer:
x = 13
Step-by-step explanation:

Take the square root of both sides

Answer: Infinitely many solutions.
Step-by-step explanation:
A. Natural Numbers
B. Whole Numbers
C. Integers
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Find f(-2) f(x)=9x^2-5x+2
f(-2) means replace x in the equation with -2:
f(-2)=9(-2)^2-5(-2)+2
= 9(4) +10 + 2
= 36 +10 + 2
= 48
f(-2) = 48