simplify, then evaluate a)2a+8a,when a=2?

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2007-10-16 12:18:07 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2(2)+8(2)
=4+16
=20
The answer is 20. Good luck with your HW!

2007-10-16 12:22:01 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Simplify:

2a + 8a = 10a.

Evaluate:

10a

= 10 x 2

= 20.

2007-10-16 19:34:55 · answer #2 · answered by Twiggy 7 · 0⤊ 0⤋

2(2)+8(2)=4 +16 = 20

2007-10-16 19:21:44 · answer #3 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋

2a(1+4)

2(2)(5) = 20

2007-10-16 19:26:38 · answer #4 · answered by Slava T 1 · 0⤊ 0⤋