This question involves a property of dividing common bases. For example, xm/xn is the same as saying x(m-n). Whenever two common bases are being divided, the exponents can be combined by subtraction.
So, for this problem: e(2x-1)/e(x-1), the e can be written once, with the exponents being subtracted:
e2x-1-(x-1), distributing the minus sign arrives at e2x-1-x+1, or ex.
ANS: ex
2x(2x - 1)
(2x - 1)(4x + 1)
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2x to the fourth power minus 162 equals -146
x + 1
k is -83/27.
2x(2x - 1)
(2x - 1)(4x + 1)
(x - 2)(2x + 3)
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(2x - 4)(2x + 3) The key is to look for all the factor pairs of 12.
2x squared - 5x - 3 = (2x +1)(x -3)
2x to the fourth power minus 162 equals -146
(2x - 1)(2x + 1)
(2x - 1)(4x2 + 2x + 1)
9(2x - 1)(2x + 1)
x + 1