x+3
2x+1
4x+1
4x-1
Answer is 4x+1 but how do you get it?
Which of the following is a factor of 4x^2-7x-2?
2008-01-28 3:20 pm
回答 (3)
2008-01-28 3:27 pm
✔ 最佳答案
4x^2 - 7x - 2= (4x + 1)(x - 2)
∴ the answer is 4x + 1
2008-01-28 11:37 pm
4x+1 is the correct answer...its a simple quadratic equation
2008-01-28 11:31 pm
4x^2-7x-2
4x^2-8x+x-2
4x(x-2)+1(x-2)
(x-2)(4x+1)
(4x+1) is a factor. You rewrite -7x as -8x+x
4x^2-8x+x-2
4x(x-2)+1(x-2)
(x-2)(4x+1)
(4x+1) is a factor. You rewrite -7x as -8x+x
收錄日期: 2021-05-01 22:49:03
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