Question

(5x + 11)(5x – 6) + (x – 2y)(x + 2y combinacion de productos notables

Answer 1

25x² −30x+55x−66+(x−2y)(x+2y)

25x²−30x+55x−66+x²−(2y) ²

25x²−30x+55x−66+x²−2²y²

(25x²+x²)+(−30x+55x)−66−4y²

26x²+25x−66−4y²

Answer 2

(5x+11)(5x-6)

5x(5x-6)

11 (5x-6)

25x^2 - 30x

55x - 66

(x-2y)(x+2y)

x(x+2y)

-2y(x+2y)

x^2 + 2xy

-2xy - 4y^2

2xy - 2xy= 0

25x^2 + x^2= 26x^2

26x^2 + 25x - 66 - 4x^2

Resultado:

26x^2 - 4y^2 + 25x - 66