(4x + 7)(16x2 - 28x + 49)
is 28x squared? if it is, the answer would be, 3(2x+5)(4x+3).
9x2 - 28x + 20 = 9x2 - 18x - 10x + 20 = 9x(x - 2) - 10(x - 2) = (9x - 10)*(x - 2)
The sum is 28x
68 + 28x - 28 = 236 28x + 68 - 68 -28 + 28 = 236 - 68 + 28 28x = 196 x = 7
49x2+28x+4 = (7x+2)(7x+2) when factored
what is -12X squared +28X - 15? i figured it out myself. its (-6X + 5)(2X - 3).
(4x + 7)(16x2 - 28x + 49)
is 28x squared? if it is, the answer would be, 3(2x+5)(4x+3).
That depends on the - or + values of 28x and 980 which have not been given
9x2 - 28x + 20 = 9x2 - 18x - 10x + 20 = 9x(x - 2) - 10(x - 2) = (9x - 10)*(x - 2)
The sum is 28x
68 + 28x - 28 = 236 28x + 68 - 68 -28 + 28 = 236 - 68 + 28 28x = 196 x = 7
The GCF is 28.
-8
4x(x - 7)
.740