Q22.

Question

Evaluate each expression if x=4,y=7, and z=9.

3x2+2y

Step-by-Step Solution

Verified
Answer

3x2+2y=28

1Step 1. Given information.

x=4,y=7, and z=9, and expression is: 3x2+2y

2Step 2. Description of step.

To solve the given expression:


substitute the given value of and y in the expression, as:


3x2+2y=342+27                      =122+14                      =14+14                      =14+14                      =28


Thus, 3x2+2y=28