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The cast of Solve for X - 2007 includes: Erica Eason
take it out.
figure it out
the rumble
81x2 + 72x + 16 = 81x2 + 36x + 36x + 16 = 9x(9x + 4) + 4(9x + 4) = (9x + 4)2
The only thing you can do to this is factor it... (4x + 8y)(4x - 8y)
(9x)2 = 81x2
64y2+144y+81???? or what is their gcf like this: 64y2=2x2x2x2x2x2xyxy??? If you respond to this and say the second one it is really very easy. All you have to do is break down the numbers like I did with 64y2 and then circle the numbers that are all the same. Then put together the circled numbers like 2xy2 (squared). Hope I helped!! If u have any questions ask me or a teacher or a friend! Sorry it's really long! Oh and i wrote the beginning to this when I didnt have an account and then edited it so both accounts that wrote this were both me.
sqrt(81x2)=9x*sqrt=square root of
(9x - 1)(9x - 1)
x2 = 49/81 so x = 7/9
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 + 49y2, the answer is (9x - 7y)(9x - 7y) or (9x - 7y)2
9x2 + 48xy + 64y2 = (3x + 8y)2. Since it is a squared number cannot be a prime. We can say that as a perfect square number, it is formed by the sum of 1 and some prime numbers (excluded 2), i.e 1 + 3 + 5 + 7 + 11 + ... n, where n is a prime.
If that's + 18x + 1, the answer is (9x + 1)(9x + 1) or (9x + 1)2