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Answered

Bonjour, pourriez-vous m'aider svp
Factoriser les expressions suivantes :
1°. 4x-14=
2°. 15-3x=
3°. 9x+21=
4°. x^2-2x=
5°. 6x+3x^2=
6°. x^2-x=

Sagot :

THOMAS756

Bonjour,

[tex]4x - 14 = 2\times 2x - 2\times 7 = 2(2x - 7)\\\\15 - 3x = 3\times 5 - 3x = 3(5 - x)\\\\9x + 21 = 3\times 3x + 7 \times 3= 3(3x + 7)\\\\x^2 - 2x = x\times x - 2x = x(x - 2)\\\\6x + 3x^2 = 2 \times 3x + x \times 3x = 3x(2 + x)\\\\x^2 - x = x(x - 1)[/tex]

LOULAKAR

Bonjour

Factoriser les expressions suivantes :

1°. 4x-14= 2 * 2x - 2 * 7 = 2(2x - 7)

2°. 15-3x= 3 * 5 - 3 * x = 3(5 - x)

3°. 9x+21= 3 * 3x + 3 * 7 = 3(3x + 7)

4°. x^2-2x= x * x - 2 * x = x(x - 2)

5°. 6x+3x^2= 3x * 2 + 3x * x = 3x(2 + x)

6°. x^2-x= x * x - x * 1 = x(x - 1)

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