Question

8. Add: 3a2+5a+4 and 6a2+2a+7.

Answer 1

Answer:

9a²+7a+11

Step-by-step explanation:

3a²+5a+4 + 6a²+2a+7

Like terms,

⇒3a²+6a²+5a+2a+4+7

⇒9a²+7a+11

Answer 2

Given: $3a^2+5a+4 \ and\ 6a^2+2a+7$

We have to add the above data.

• As we know that adding two or more numbers together is known as an addition.
• The addition is denoted by a symbol(+).

Following are the properties of addition:

1. Identity property of zero.
2. Inverse property.
3. Commutative property.
4. Associative property.

We are solving in the following way:

We have,

$3a^2+5a+4 \ and\ 6a^2+2a+7$

$3a^2+5a+4 \ +\ 6a^2+2a+7$

Arranging like terms together:

$=>3a^2+5a+4+6a^2+2a+7\\=>3a^2+6a^2+5a+2a+4+7$

Solving like terms:

$=>9a^2+7a+11$

Hence, we get the solution is$9a^2+7a+11$.