Question

answer this question i m very thankful to you ques , no 13 and 16

Answer 1

Hey there!
Here is your answer :
13) 5x + 10y - 7 (x + 2y)²
=> 5x + 10y -7 (x² + 4y² + 4xy)
=> 5x + 10y - 7x² - 28y² - 28xy

16)x (x -2z) + y (y - 2z) + (2z - x)
=> x² - 2xz + y² - 2yz + 2z - x

Hope this helps ya ✌️

Answer 2

Hope this will help u.....