Question

Evaluate a(4b + c2) if a = 2, b = 5, and c = 1.

Answer 1

The answer is 42 .

Explanation:

Here,

a = 2

b = 5

c = 1

Now,

`a(4b+c^(2) )`

`= 2(4 * 5 +1^(2) )`

= 2( 20 + 1 )

= 2 x 21

=42

Answer 2

42

Explanation:

a = 2, b = 5, and c = 1

• a*(4b + c²) = ⇒ plug in values
• 2*(4*5 + 1²) = ⇒ solving exponents
• 2*(20 + 1) = ⇒ parenthesis
• 2*21 = ⇒ multiplication
• 42 ⇒ answer