Question

Simplify 2a (a2 + a - 2) + 8 and find its value for a = 2​

Answer 1

2a ( a² + a - 2) + 8

When a = 2

= 2(2) [(2)² + 2 - 2)] + 8

= 4 ( 4 + 2 - 2) + 8

= 4 (4) +8

= 16 +8

= 24

Be Brainly!

Answer 2

Answer:

We will get the value is 24.

Step-by-step explanation:

• As per the question we have to evaluate the given data.

         Given data:- $a=2.$

         To find:- Value of $2a(a^{2} +a-2)+8.$

         Solution:-

• To solve the above question we will follow the BODMAS rule.

• BODMAS is an order of mathematic operations.

• It stands for,

           B= bracket

           O= order of power or rules

           D= division

           M= multiplication

           A= addition

           S= subtraction

     Now put the value of a=2 in the given data we get,

          $2a(a^{2} +a-2)+8\\=2(2)(2^{2} +2-2)+8\\=4(4+2-2)+8\\=4(6-2)+8\\=4(4)+8\\=16+8\\=24$

 The question is to find the value of $(a^{2} +a-2)+8$ when $a=2.$