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F =( 4 + V7)au carré
G = (V3-V5)au carré
H = (9-V7)(9+V7)
I = (3V2+V5)au carré
F =( 4 + V7)au carré
G = (V3-V5)au carré
H = (9-V7)(9+V7)
I = (3V2+V5)au carré
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Réponse :
F =( 4 + V7)²= (a+b)² =a²+2ab+b²
F = 4²+ 2*4*V7 +(V7)²
F = 16+8V7+7
F = 8V7+23
G = (V3-V5)²= (a-b)² =a²-2ab+b²
G =(V3)² - 2V3*V5 +(V5)²
G = 3-2V15+5
G = -2V15+8
H = (9-V7)(9+V7) = (a-b)(a+b)=a²-b²
H = 9²-(V7)²
H = 81-7 = 74
I = (3V2+V5)²
I = 18+6V10+5
I = 6V10+23
Explications étape par étape :