(2x+7)(x+7)
2x2 + 21x + 49 = 2x2 +14x +7x + 49 = 2x(x + 7) + 7(x + 7) = (2x + 7)(x + 7)
10x2y2 + 8xy2 - 210y2 = 2y2(5x2 + 4x - 105) = 2y2(5x2 + 25x - 21x - 105) = 2y2(x + 5)(5x - 21).
2x2 + 21x + 49 = (2x + 7)(x + 7)
2x2 + 21x + 49= 2x2 + 14x + 7x + 49= 2x(x + 7) + 7(x + 7)= (x + 7)(2x + 7)
Presumably all the terms are positive? (2x+7(x+7)
21x + 9 = 180 21x = 180 - 9 21x = 171 x = 171/21 x = 8.143
3 * 7 * x No exponents necesary
(7x+2)(2y-1)
21x+452 = 32-84x 21x+84x = 32-452 105x = -420 x = -4
i hope you mean (2x^2 + 21x + 49) you cant solve it its already in its lowest possible form
20x + 5 - 20 = 21x + 4 -x = 4 + 15 x = -19