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Sagot :

LAU2505
Bonsoir,

(3x+5)^2=9x^2+30x+25

(x+4)^2=x^2+8x+16

(3x-3)^2=9x^2-18x+9

(3x+4)^2=9x^2+24x+16

x^4-4=(x^2-2)(x^2+2)

x^2-12x+36= (x-6)^2

x^4y^4-(2/25)x^4y^4+(1/25)=(x^2y^2-(1/5))^2

(2x-6)^2=4x^2-24x+36

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