Question

ayudaaaaa es mi examen doy corona​

Answer 1

Explicación paso a paso:

Factoriza:

3xy + x = x ( 3y + 1 )

(x - a) - y (x - a) = (x - a) ( 1 - y)

ax - ay + bx - by = ( x - y ) ( a + b)

ax - bx - cx - ay + by + cy - a + b + c = ( a - b - c) ( x - y - 1 )

$100x {}^{2} - 81a {}^{2} b {}^{2} = (10x) {}^{2} - (9ab) {}^{2}$