What is (-7x^2-4x-1)-(6x^2+4x) ?

The solution to (-7x^2-4x-1)-(6x^2+4x) is -13x^2-8x-1

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simplify (-7x^2-4x-1)-(6x^2+4x)

simplify

(- 7 x^{2} - 4 x - 1) - (6 x^{2} + 4 x)

- 13 x^{2} - 8 x - 1

Solution steps

(- 7 x^{2} - 4 x - 1) - (6 x^{2} + 4 x)

Apply rule:

(a) = a

(- 7 x^{2} - 4 x - 1) = - 7 x^{2} - 4 x - 1

= - 7 x^{2} - 4 x - 1 - (6 x^{2} + 4 x)

Apply the distributive law:

- (a + b) = - a - b

- (6 x^{2} + 4 x) = - 6 x^{2} - 4 x

= - 7 x^{2} - 4 x - 1 - 6 x^{2} - 4 x

Group like terms

= - 7 x^{2} - 6 x^{2} - 4 x - 4 x - 1

Add similar elements:

- 7 x^{2} - 6 x^{2} = - 13 x^{2}

= - 13 x^{2} - 4 x - 4 x - 1

Add similar elements:

- 4 x - 4 x = - 8 x

= - 13 x^{2} - 8 x - 1

\frac{x ^{2} - 1}{x ^{2} + 2 x + 1}

(b - 6) (b - 5)

\frac{20}{40}

\frac{3}{2} \div \frac{1}{2}

(x - 2) (x - 2)

What is (-7x^2-4x-1)-(6x^2+4x) ?
The solution to (-7x^2-4x-1)-(6x^2+4x) is -13x^2-8x-1