Bonjour vous pouvez m’aider à faire ces exercices je dois développer (sous forme d’identité remarquable)

Réponse :

(a + b)^2 = a^2 + 2ab + b^2

(a - b)^2 = a^2 - 2ab + b^2

(a - b)(a + b) = a^2 - b^2

Explications étape par étape

Bonsoir

Developper :

I = (x + 1)^2

I = x^2 + 2x + 1

J = (x - 1)^2

J = x^2 - 2x + 1

K = (5x - 2)^2

K = 25x^2 - 20x + 4

L = (8x - 9)(8x + 9)

L = 64x^2 - 81

M = (3x + 1)^2

M = 9x^2 + 6x + 1

N = (1 - 3x)^2

N = 1 - 6x + 9x^2

O = (2x - 1)(2x + 1)

O = 4x^2 - 1

P = (V2 + 3)(V2 - 3)

P = 2 - 9

P = -7

Q = (V2 + V3)^2

Q = 2 + 2V6 + 3

Q = 5 + 2V6

R = (x/2 + 3)^2

R = x^2/4 + 3x + 9

S = (x/3 - 1/7)^2

S = x^2/9 - 2x/21 + 1/49

T = (-3x + 5)^2

T = 9x^2 - 30x + 25

U = (2x - 6)^2

U = 4x^2 - 24x + 36

V = (2x + 9)^2

V = 4x^2 + 36x + 81

W = (1 - 7x)^2

W = 1 - 14x + 49x^2

X = (-4 - y)(-4 + y)

X = 16 - y^2

Y = (x - 5)(x + 5)

Y = x^2 - 25

Z = (4 - 3w)(4 + 3w)

Z = 16 - 9w^2