What is (2a^2+5a+3)-(a^2-3a-4) ?

The solution to (2a^2+5a+3)-(a^2-3a-4) is a^2+8a+7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (2a^2+5a+3)-(a^2-3a-4)

simplify

(2 a^{2} + 5 a + 3) - (a^{2} - 3 a - 4)

a^{2} + 8 a + 7

Solution steps

(2 a^{2} + 5 a + 3) - (a^{2} - 3 a - 4)

Apply rule:

(a) = a

(2 a^{2} + 5 a + 3) = 2 a^{2} + 5 a + 3

= 2 a^{2} + 5 a + 3 - (a^{2} - 3 a - 4)

Apply the distributive law:

- (a - b) = - a + b

- (a^{2} - 3 a - 4) = - a^{2} + 3 a + 4

= 2 a^{2} + 5 a + 3 - a^{2} + 3 a + 4

Group like terms

= 2 a^{2} - a^{2} + 5 a + 3 a + 3 + 4

Add similar elements:

2 a^{2} - a^{2} = a^{2}

= a^{2} + 5 a + 3 a + 3 + 4

Add similar elements:

5 a + 3 a = 8 a

= a^{2} + 8 a + 3 + 4

Add the numbers:

3 + 4 = 7

= a^{2} + 8 a + 7

2^{- 1} - 2^{1}

2450

f (a) = \frac{a ^{2} - 9}{a ^{2} - 3 a}

10 (10 x + 7 y - 6)

8 x^{2} - 80 x

What is (2a^2+5a+3)-(a^2-3a-4) ?
The solution to (2a^2+5a+3)-(a^2-3a-4) is a^2+8a+7