Réponse :
A=(2x-5)(x+10)
B=(4-3x)(x-4)
C=2(2x+1)(-x+4)
D=8(a+9b)
E=7x³(x²+3x+5)
F=2x(3x-1)²
Explications étape par étape :
A = 3(2x-5)+(x+7)(2x-5) B = (4-3x)(1+x)-5(4-3x) C = (2x+1)²-(2x+1)(4x-7)
A = (2x-5)(3+(x+7)) B = (4-3x)((1+x)-5) C = (2x+1)(2x+1)-(2x+1)(4x-7)
A = (2x-5)(3+x+7) B = (4-3x)(1+x-5) C = (2x+1)((2x+1)-(4x-7))
A = (2x-5)(x+3+7) B = (4-3x)(x+1-5) C = (2x+1)(2x+1-4x+7)
A = (2x-5)(x+10) B = (4-3x)(x-4) C = (2x+1)(2x-4x+1+7)
C = (2x+1)(-2x+8)
C = (2x+1)(2*(-x)+2*4)
C = (2x+1)*2(-x+4)
C = 2(2x+1)(-x+4)
D = 8a-72b E = 7x^5+21x^4+35x³ F = 18x³-12x²+2x
D = 8*a+8*9b E = x²*7x³+3x*7x³+5*7x³ F = 2x*9x²+2x*(-6x)+2x*1
D = 8(a+9b) E = 7x³(x²+3x+5) F = 2x(9x²-6x+1)
F = 2x(3x-1)²
