Question

Subtract the second expression from the first.
5x2
+ 7y2
– 6y + 9 ; x2
– 5y2
+ 3y -15

Answer 1

Answer:

$x^2-5y^2+3y-15-(5*2+7y^2-6y+9)\\=x^2-5y^2+3y-15-10-7y^2+6y-9\\=x^2-12y^2+9y-34$

This is the answer.

Answer 2

$\huge\underline{\bf \orange{Answer :}}$

=> x 2 −5y 2 +3y−15−(5∗2+7y 2 −6y+9)

=> x 2 −5y 2 +3y−15−10−7y 2 +6y−9

=> x 2 −12y 2 +9y−34 Ans.