Question

productos notables

(x-y) (x-y)

(x+5)(x-5)

(x+6)(x-4)

(x-3)(x+5)

(x-2)(x-2)

(4x-3y)(2x+5y)

(5x-4y)(3x-2y)

Answer 1

X^2-2xy+y^2

X^2-25

X^2+2x-24

X^2+2x-15

X^2-4x+4

8x^2+14xy-15y^2

15x^2-22xy+8y^2

Answer 2

(x-y)(x-y)=x²–xy + y²
(x+5) (x-6)=x²+x–30
(x+6)(x–4)=x²+2x–24
(x–3)(x+5)=x²–2x–15
(x–2)(x–2)=x²–4x+4
(4x–3y)(2x+5y)=8x²–xy–15y²
(5x–4x)(3x–2y)=15x²–14xy+8y²