Question

Which expressions are equivalent to 4(4a+5) Select: 16a+5 16a+20

Answer 1

Use the property of distribution:

a(b+c) = ab + ac

4(4a+5) = 4(4a) + 4(5)
4(4a+5) = 16a + 20

Hope that helps :)

Answer 2

Answer:

Option B is correct.

16a +20 is the expression equivalent to $4(4a+5)$

Step-by-step explanation:

Given the expression: $4(4a+5)$                    .....[1]

The distributive property says that:

$a \cdot (b+c) = a\cdot b + a\cdot c$

Apply the distributive property in [1] we get;

$4(4a+5)$ = $4 \cdot (4a) + 4 \cdot (5) = 16a + 20$

Therefore, the expression which is equivalent to $4(4a+5)$  is, 16a + 20