Question

Evaluate (ab)2 for a=4 and b =3

Answer 1

To solve this problem, we must substitute each variable a in the expression with a 4 and each variable b in the expression with a 3. This is modeled below:

(ab)2

(4*3)2

To simplify, we must remember to use the order of operations, which is outlined by PEMDAS. This tells us that we should compute numbers in parentheses first, exponents next, then multiplication and division, and finally addition and subtraction. In this example, we are going to compute what is in the parentheses first.

(4*3)2

12 * 2

Next, we can solve using multiplication.

24

Therefore, your answer is 24.

Hope this helps!