Simplify the following expression.
7y(7x + 10y) - 6x(3y - 5x)

A. -30x2 + 31xy + 70y2

B. 30x + 31xy + 70y

C. 5x2 + 31xy + 10y2

D. 30x2 + 31xy + 70y2

Question

Simplify the following expression.
7y(7x + 10y) - 6x(3y - 5x)

A.  -30x2 + 31xy + 70y2 
 
  B.  30x + 31xy + 70y 
 
  C.  5x2 + 31xy + 10y2 
 
  D.  30x2 + 31xy + 70y2

anonymous · Answer

ill help... wait lemme type

anonymous · Answer

Given

7y(7x + 10y) - 6x(3y - 5x)

First we need to distribute

49xy + 70y^2 - 18xy + 30x^2

What is the next step?

anonymous · Answer

follow these steps,
multiply 7y with 7x
put an addition sign,
then multiply 7y with 10 y

next u have to multiply -6x with 3y 
and then -6x with (-5x) 

so now u've got this:
49xy + 70y^2 -18y + 30x^2

This is ur answer