The GCF is 9. The LCM is 3528.
Chat with our AI personalities
Some signs would have helped answerers but for what its worth 7 & 8 are factors of 56 which differ by 1 so how about: (y - 7x)(y + 8x) which are the factors of y2 + xy - 56x2 or (y + 7x)(y - 8x) which are the factors of y2 - xy - 56x2.
2/7x = 8x = 8 x 7/2x = 28
80
Complementary angles add up to 90 degrees so if y = 8x-20 degrees then the complement of y is 90 - (8x - 20) = 110 - 8x degrees.
This would be easier with operational signs but assuming everything is added together, the answer is (8x + 9)(8x + 9) or (8x + 9)2