Simplify expression - 9a-4 (2a+5)

Question

Kylee Stevens

Mathematics

22 October, 02:08

Simplify expression - 9a-4 (2a+5)

+5

Answers (1)

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Evan · Answer 1

Apply the distributive property.

9

a

-

4

(

2

a

)

-

4

⋅

5

9

a

-

4

(

2

a

)

-

4

⋅

5

Multiply

2

2

by

-

4

-

4

.

9

a

-

8

a

-

4

⋅

5

9

a

-

8

a

-

4

⋅

5

Multiply

-

4

-

4

by

5

5

.

9

a

-

8

a

-

20

Subtract

8

a

8

a

from

9

a

9

a

.

a-20