Question

Use the function to evaluate the indicated expressions and simplify.

Answer 1

9514 1404 393

Answer:

• f(x²) = x² +5
• (f(x))² = x² +10x +25

Step-by-step explanation:

Put the argument in place of x and evaluate the desired expression.

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1. f(x²) = x² + 5 . . . . . . straight substitution for x

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2. (f(x))² = (x +5)²

  = (x +5)(x +5) = x(x +5) +5(x +5) = x² +5x +5x +25

  (f(x))² = x² +10x +25