Question

Simplify 5 x2 – 4 y2 + 6 y – 3 - 7 x2 + 8 y2 – 3 y + 10

Answer 1

Step-by-step explanation:

$\tt \red {\implies {5x}^{2} - {4y}^{2} + 6y - 3 - {7x}^{2} + {8y}^{2} - 3y + 10 }$

$\tt \pink{ \implies</p><p>(5{x}^{2}-7{x}^{2})+(-4{y}^{2}+8{y}^{2})+(6y-3y)+(-3+10)(5x2−7x2)+(−4y2+8y2)+(6y−3y)+(−3+10)}$

$\tt \purple{ \implies - 2{x}^{2}+4{y}^{2}+3y+7}$

Answer 2

Given,

$5x^{2} -4y^{2}+6y-3-7x^{2} +8y^{2}-3y+10$

Here, we have to simplify the given expression.

First we have to do addition or subtraction of variable terms after that constant terms.

$5x^{2} -4y^{2}+6y-3-7x^{2} +8y^{2}-3y+10$

$= -2x^{2} +4y^{2}+3y-3+10$

$= -2x^{2} +4y^{2}+3y+7$

Therefore, the answer is $-2x^{2} +4y^{2}+3y+7$.