ISEE Mathematics Achievement Question 260: Answer and Explanation

Home > ISEE Test > ISEE Mathematics Achievement Practice Tests

Test Information

Use your browser's back button to return to your test results.
Do more ISEE Mathematics Achievement Practice Tests.

Question: 260

6. For what integer value of m does 2m + 4 = m³ ?

A. 1
B. 2
C. 3
D. 4

Correct Answer: B

Explanation:

B Use PITA to plug in the choices for m, starting with (C). Plug 3 in for m: 2(3) + 4 = 10 and 3³ = 27, which are not equal. Since 3 is too large, eliminate (C) and (D). Next try (B): 2(2) + 4 = 8 and 2³ = 8. Since this works, stop here. The correct answer is (B).

Previous Next