32
49x2+28x+4 = (7x+2)(7x+2) when factored
4
If you mean 2x+4(7x-1) then 2x+28x-4=30x-4=2(15x-2) If you mean 2x+4(7x)-1 then 2x+28x-1=30x-1
28x(6-7)\4
It is: 4(6x+x) = 24x+4x => 28x
(7x + 4)(49x^2 - 28x + 16)
It is: 4(6x+x) = 24x+4x => 28x
68 + 28x - 28 = 236 28x + 68 - 68 -28 + 28 = 236 - 68 + 28 28x = 196 x = 7
7, but if you multiply x times 4 it would be 28x
That depends on the - or + values of 28x and 980 which have not been given
If that's +32, the answer is (x - 4)(5x - 8)
what is -12X squared +28X - 15? i figured it out myself. its (-6X + 5)(2X - 3).