👤

Sagot :

Bonjour

3) 1-

A = 10 (x + 7)

A = 10x + 70

B = x (2x + 3)

B = 2x² + 3x

2-

C = 3x + 4 - 2x + 7

C = 3x - 2x + 4 + 7

C = x + 11

D = 7x - 1 + x² + 2x + 9

D = x² + 7x + 2x - 1 + 9

D = x² + 9x + 8

3-

C = 4 (2x + 1) + 3 (x + 6)

C = 8x + 4 + 3x + 18

C = 8x + 3x + 4 + 18

C = 11x + 22

D = 3 (x - 2) + 2 (x + 3)

D = 3x - 6 + 2x + 6

D = 3x + 2x - 6 + 6

D = 5x.

© 2024 IDNLearn. All rights reserved.