Question

Simplify (4a -1) 2+a

Answer 1

Is that \((4 a - 1)^2 + a\)?

Answer 2

no exponents

Answer 3

\[(4 a - 1)(2 + a) \]?

Answer 4

yea but ( 2 +a has no brackets

Answer 5

Then I don't think that the question makes sense. Does your question mean \(2(4a - 1) + a\)?

Answer 6

You have another distributive property problem, but then just add "a" to the result.
You can first do 2(4a-1), then add "a" to that result. Does that make sense?

Answer 7

@rubie the answer is 16a^2-7a+1

Answer 8

@Math4Life, the problem is multiply by 2, nothing is squared.

Answer 9

(4a-1)2 = 2(4a-1)
Use the distributive property to multiply, then add "a" to the result

Answer 10

@catherine oh i didnt see that. Then 4a^2+7a-2

Answer 11

@Math4Life, giving someone an answer is not helpful, especially if it's a wrong answer

Answer 12

@catherine thats not the wrong answer..

Answer 13

It sais to simplify.

Answer 14

Simplified its 4a^2+7a-2

Answer 15

No it's not, nothing is squared.

Answer 16

@catherine you know nothing about math.. i'm in AP calculus and i'm a freshman...

Answer 17

@catherine it's not even hard to understand how they come together and make ^2

Answer 18

(4a -1) 2+a

Solution with steps:
(4a -1) 2+a
= 2(4a -1)+a (Commutative Prop.)
= (2*4a - 2*1) + a (Distributive Prop.)
= (8a - 2) + a (Multiply)
= 9a - 2 (Simplify by combining like terms)

Answer 19

@Math4Life Do you see your mistake now?

Answer 20

@catherine ah i'm sorry for acting like a jerk lol

Answer 21

@Math4Life And, yes, I do know math. My degree was Mathematics, and I was a high school math teacher. But my point is, don't think you are helping someone by giving out answers. At least when I gave the answer, I also gave every step with a reason for that step. The purpose of study groups is to give help, not answers.