What is (8x^2-9y^2-4x)+(x^2-3y^2-7x) ?

The solution to (8x^2-9y^2-4x)+(x^2-3y^2-7x) is 9x^2-11x-12y^2

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simplify (8x^2-9y^2-4x)+(x^2-3y^2-7x)

simplify

(8 x^{2} - 9 y^{2} - 4 x) + (x^{2} - 3 y^{2} - 7 x)

9 x^{2} - 11 x - 12 y^{2}

Solution steps

(8 x^{2} - 9 y^{2} - 4 x) + (x^{2} - 3 y^{2} - 7 x)

Simplify

(8 x^{2} - 9 y^{2} - 4 x) + (x^{2} - 3 y^{2} - 7 x) : 8 x^{2} - 9 y^{2} - 4 x + x^{2} - 3 y^{2} - 7 x

= 8 x^{2} - 9 y^{2} - 4 x + x^{2} - 3 y^{2} - 7 x

Group like terms

= 8 x^{2} + x^{2} - 4 x - 7 x - 9 y^{2} - 3 y^{2}

Add similar elements:

8 x^{2} + x^{2} = 9 x^{2}

= 9 x^{2} - 4 x - 7 x - 9 y^{2} - 3 y^{2}

Add similar elements:

- 4 x - 7 x = - 11 x

= 9 x^{2} - 11 x - 9 y^{2} - 3 y^{2}

Add similar elements:

- 9 y^{2} - 3 y^{2} = - 12 y^{2}

= 9 x^{2} - 11 x - 12 y^{2}

18 q^{4}

L in f + C (\frac{\frac{n ( k )}{100} - ( f - 1 )}{f i})

\frac{2 x ^{- 4}}{3 x y}

(3 x^{3} - 4 y^{2})^{5}

\frac{20}{75}

What is (8x^2-9y^2-4x)+(x^2-3y^2-7x) ?
The solution to (8x^2-9y^2-4x)+(x^2-3y^2-7x) is 9x^2-11x-12y^2