Question

3O POINTS!!!

3x2 - 36 ÷ y - (5 + 16)

What is the value of the expression when x = 7 and y = 6?

A.
120
B.
15
C.
2
D.
152

Answer 1

A 120

Explanation:

3x^2 - 36 ÷ y - (5 + 16)

Let x = 7 and y =6

3(7)^2 - 36 ÷ 6 - (5 + 16)

PEMDAS

Parentheses first

3(7)^2 - 36 ÷ 6 - (21)

Exponents

3*49 - 36 ÷ 6 - (21)

Multiplication and division from left to right

147 - 6 -21

Addition and subtraction from left to right

120