What is (9r^3+5r^2+11r)+(-2r^3+9r-8r^2) ?

The solution to (9r^3+5r^2+11r)+(-2r^3+9r-8r^2) is 7r^3-3r^2+20r

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (9r^3+5r^2+11r)+(-2r^3+9r-8r^2)

simplify

(9 r^{3} + 5 r^{2} + 11 r) + (- 2 r^{3} + 9 r - 8 r^{2})

7 r^{3} - 3 r^{2} + 20 r

Solution steps

(9 r^{3} + 5 r^{2} + 11 r) + (- 2 r^{3} + 9 r - 8 r^{2})

Simplify

(9 r^{3} + 5 r^{2} + 11 r) + (- 2 r^{3} + 9 r - 8 r^{2}) : 9 r^{3} + 5 r^{2} + 11 r - 2 r^{3} + 9 r - 8 r^{2}

= 9 r^{3} + 5 r^{2} + 11 r - 2 r^{3} + 9 r - 8 r^{2}

Group like terms

= 9 r^{3} - 2 r^{3} + 5 r^{2} - 8 r^{2} + 11 r + 9 r

Add similar elements:

9 r^{3} - 2 r^{3} = 7 r^{3}

= 7 r^{3} + 5 r^{2} - 8 r^{2} + 11 r + 9 r

Add similar elements:

5 r^{2} - 8 r^{2} = - 3 r^{2}

= 7 r^{3} - 3 r^{2} + 11 r + 9 r

Add similar elements:

11 r + 9 r = 20 r

= 7 r^{3} - 3 r^{2} + 20 r

lo g_{10} (1 0^{- 7})

(2 x - 8)^{2}

\frac{50}{20}

- 7 - (- 1)

What is (9r^3+5r^2+11r)+(-2r^3+9r-8r^2) ?
The solution to (9r^3+5r^2+11r)+(-2r^3+9r-8r^2) is 7r^3-3r^2+20r