(2x - 5)(2x - 3)
2x2+14x
It is; (2x+4)^2.
(2x - 1)(x + 2)(x^2 - 2x + 4)
-3x2 + 16x + 12 = -3x2 + 18x - 2x + 12 = -3x*(x - 6) - 2(x - 6) = -(3x + 2)*(x - 6)
8x2 + 16x + 8 = 8*(x2 + 2x + 1) = 8*(x + 1)2
2(x - 7)(x - 1)
8-16x-32=0 8=16x-32 2x-4=0 2x=4 x=2
2x^8 -16x^7 +10x^6 = 2x^6(x^2 - 8x + 5)
It is: 16x
2x
-16x + 2 + 18x 'Like' terms are those which contain the same factor; in this case 'x' So taking -16x + 18x =. 18x - 16x = 2x So it becomes 2x + 2 NB The '2' , on its own is a constant, so is not a 'like' term. Similarly, something like 2x^3 + 3x^2 + x^3 - x^2 . The 'x^3' are like terms , and the 'x^2' are like terms, but 'x^3' is unlike to 'x^2'. So collecting like terms it would become 4x^3 + 2x^2 . When you do something like 2x^2(2x + 1) , this is NOT collecting like terms , but FACTORING. Hope that helps!!!!!