Question

Which of the following represents "four times the square of a number is thirty-six"?

Answer 1

Answer:

the answer will be 4x²...last option

Answer 2

Answer:

Answer is 4x² = 36

Step-by-step explanation:

Let that number be x:

$4 \times x {}^{2} = 36 \\ {4x}^{2} = 36$

further more:

${x}^{2} = \frac{36}{4}$

take a square root:

$\sqrt{ {x}^{2} } = \sqrt{ \frac{36}{4} } \\ \\ x = \frac{ \sqrt{36} }{ \sqrt{4} } \\ \\ x = \frac{6}{2} \\ \\ x = 3$