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70
15x4 and 35x2 = 5x2
35x2 - 38x + 8
The answer is 70.
35x2
21x3-35x2+14x = 7x(3x2-5x+2)
The process: 70x2 35x2 5x7 The answer is 2x2x7.
5x^2
-(5x + 3)(7x - 2)
(7x - 5)(5x - 2)
(5x - 3)(7x + 9)
35x2=70cm
5x(x^4+7x+4)