What is (4b^2-8b+11)-(-2b^2-4b+5) ?

The solution to (4b^2-8b+11)-(-2b^2-4b+5) is 6b^2-4b+6

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (4b^2-8b+11)-(-2b^2-4b+5)

simplify

(4 b^{2} - 8 b + 11) - (- 2 b^{2} - 4 b + 5)

6 b^{2} - 4 b + 6

Solution steps

(4 b^{2} - 8 b + 11) - (- 2 b^{2} - 4 b + 5)

Apply rule:

(a) = a

(4 b^{2} - 8 b + 11) = 4 b^{2} - 8 b + 11

= 4 b^{2} - 8 b + 11 - (- 2 b^{2} - 4 b + 5)

Apply the distributive law:

- (- a - b) = a + b

- (- 2 b^{2} - 4 b + 5) = 2 b^{2} + 4 b - 5

= 4 b^{2} - 8 b + 11 + 2 b^{2} + 4 b - 5

Group like terms

= 4 b^{2} + 2 b^{2} - 8 b + 4 b + 11 - 5

Add similar elements:

4 b^{2} + 2 b^{2} = 6 b^{2}

= 6 b^{2} - 8 b + 4 b + 11 - 5

Add similar elements:

- 8 b + 4 b = - 4 b

= 6 b^{2} - 4 b + 11 - 5

Subtract the numbers:

11 - 5 = 6

= 6 b^{2} - 4 b + 6

(x^{- 1})^{- 2}

(x^{2} - 2 x - 8) (- x^{2} + 3 x - 5)

\frac{x ^{2} + 4 x - 21}{x ^{2} - 9}

\frac{4}{4}

1 x + 1 x

What is (4b^2-8b+11)-(-2b^2-4b+5) ?
The solution to (4b^2-8b+11)-(-2b^2-4b+5) is 6b^2-4b+6