If that's + 49y2, the answer is (9x - 7y)(9x - 7y) or (9x - 7y)2
If that's + 18x + 1, the answer is (9x + 1)(9x + 1) or (9x + 1)2
(4x + 7y)(16x2 - 28xy + 49y2)
(9x - 1)(9x - 1)
a proper factor is a factor.
If that's + 49y2, the answer is (9x - 7y)(9x - 7y) or (9x - 7y)2
There is a formula for the "difference of squares." In this case, the answer is 9(3x + 2)(3x - 2)
If that's + 18x + 1, the answer is (9x + 1)(9x + 1) or (9x + 1)2
81x2 + 72x + 16 = 81x2 + 36x + 36x + 16 = 9x(9x + 4) + 4(9x + 4) = (9x + 4)2
This is a difference of two sqaures. 49y2 - z2 = (7y - z)(7y + z)
No.
16x2+56xy+49y2
(7y-12)(7y+12)
(9x)2 = 81x2
4x^(2) + 28xy + 49y^(2) -> (2x)^(2) + 28xy + (7y)^2 Split into brackets ( 2x + 7y)(2x + 7y) If you applyuFOIL you will find toy come to '28xy'. The clue to this problem is to note that '4' ^ '49' are both squared numbers.
(4x + 7y)(16x2 - 28xy + 49y2)
sqrt(81x2)=9x*sqrt=square root of