Question

If x = 6, what is the value of 4x2 - 7? O A. 151 B. 137 C. 571 D. 172

Answer 1

Answer:

B. 137

Step-by-step explanation:

Assuming by 4x2 you meant 4$x^{2}$, you plug in the 6 into x.

After, you would square 6, giving you 36.

Then you multiply 36 by 4, getting 144

All that's left to do is subtract 7 from 144 and ending with 137.

Answer 2

Answer: B

Step-by-step explanation: 6^2 = 36

36*4= 144

144-7= 137