(2x + 1)(x + 3) are the factors.
The factors are 2n(4n + 3).
That factors to (b + 3)(a + c)
Factors are normally positive and so the factors needed are 6 plus 8 = 14 but not -14
8a times (2 + 1)
true
192
343y3
125x3+343y3 can also be written (5x)3+(7y)3. It helps to rewrite the constants like this because there is a general factoring rule: a3+b3 = (a+b)(a2-ab+b2). In this example, the a is 5x and the b is 7y. Plug in and get (5x+7y)(25x2-35xy+49y2).
The value of 64x3 + 27 depends on the value of x. If the question required factorisation, but did not ask for it, the answer is: (4x + 3)(16x2 - 12x + 9)
This would have been easier to answer if you had told us what the following choices were, but if they include (4x + 7) or (16x2 - 28x + 49), choose one of them.
(4x)3 = 64x3 y0 = 1
The difference of cubes has a formula. (4x - y)(16x2 + 4xy + y2)
51.07142857142857
(2x + 1)(x + 3) are the factors.
The factors of 72 are 1,2,3,4,6,8,9,12,18,24,36,72.
The factors are 2n(4n + 3).