Question

plzzzzzzzzz do the 9 the one

Answer 1

only answer
●5x(x-4x)
●(5a-7b)(b+c)
●(3xy-1)(x^2+xy^2)
●(b+2c)(6a-b)
●(x+x/1)(x+1/x-2)

Answer 2

The 1. 5x²-20xy = 0

= 5x(x-4y)

here is your answer.

2. 5a(b+c) -7b(b+c)

= 5a-7b (b+c)