Sagot :

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Réponse

bonsoir

6 x + x =  6 * x + x = 7 x

8 n - 5  n =  8 * n - 5 *n =  3 n

7 x - 6 =  7 * x - 6 = 7 x - 6

3.5 y + y = 3.5 * y + y =  4.5  y

Explications étape par étape

edenWhite

Réponse:

45) a. 6x²- 5x = 6x*x - 5*x = (6x - 5)*x

b. 49y² + 14y = 7y*7y + 7y*7 = 7y(7y + 7)

c. 9n² - 6n = 3n*3n - 3n*2 = 3n(3n - 2)

d. 8t² + 6t + 2 = 2*4t² + 2*3t + 2*1 = 2(4t² + 3t + 1)

46) a. 8n - 5n = 8*n - 5*n = (8 - 5)*n = 3n

b. 6x + x = 6*x + 1*x = (6 + 1)*x = 7x

c. 7x - x = 7*x - 1*x = (7 - 1)*x = 6x

d. 3,5y + y = 3,5*y + 1*y = (3,5 + 1)*y = 4,5y