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1 vote
Evaluate the expressions for the given value and match them with the simplified answer.

-3 + x^2 for x = 6
A) -3
B) 15
C) 33
D) 39

-2 + 2d^3 for x = 6
A) 4
B) 14
C) 38
D) 64

2 Answers

3 votes

Answer:

-3 + 6² = -3 + 36 = 33

The correct answer is A.

-2 + 2(6³) = -2 + 2(216) = -2 + 432 = 430

None of those choices are correct.

User Qqbenq
by
7.3k points
3 votes

Final answer:

For the expression -3 + x^2 with x=6, the answer is 33 (Option C).

For the expression -2 + 2x^3 with x=6, a mistake seems to have occurred as the answer 430.

Step-by-step explanation:

The first expression to evaluate is -3 + x^2 for x = 6. To evaluate, replace x with 6 and calculate:

  • -3 + (6)^2
  • -3 + 36
  • 33

The simplified answer is 33, which corresponds to option C.

The second expression to evaluate is -2 + 2x^3 for x = 6. Here's the step-by-step calculation:

  • -2 + 2*(6)^3
  • -2 + 2*216
  • -2 + 432
  • 430

This yields the simplified answer of 430, which is not listed in the options provided. It seems there is an error in the given options for this expression.

User Uwe Mesecke
by
8.1k points