Exercice 2: Réduis si possible les expressions suivantes : A = 7+ 3x G = -5x x 2x B = 7 x 3x H = -5x + 2x C = 7xx 3x I = -8x x (-3x) D = 7x + 3x J = -8x - 3x K = -8 × (-3x) E = -5 x 2x F = -5 + 2x L=-8-3x Q = 5x + 3y - 7x² + 4x - 3x² + y M = 10-3x N = 10xx (-3x) 0 = 10 x (-3x) P = 10x - 3x R = 4a³+3a +8a²-5a³ + 2a
A = 10x B = 21x C = 21x carré D = 10x E = -10x F = -5+2x G = -10x carré H = -3x I = 24x J = -11x K = -24x L = -11x M = 7x N = -30x carré O = -30x P = 7x Q = -10x carré + 9x + 4y R = a cube + 8a carré + 5a
