Question

Simplify 2x (x-1)+5 and find its value for x=(-1)

Answer 1

HEY MATE HERE IS YOUR ANSWER....

Let's simplify step-by-step.

2x(x−1)+5

Distribute:

=(2x)(x)+(2x)(−1)+5

=2x^2−2x+5


2(−1)^2−(2)(−1)+5

=(2)(1)−(2)(−1)+5

=2−(2)(−1)+5

=2−(−2)+5

=4+5

=9

Answer 2

Answer:

We will get the value is 9.

Step-by-step explanation:

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

        Given data:- x=-1.

        To find:- Value of 2x(x-1)+5.

        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 x=-1 in 2x(x-1)+5.

          $2x(x-1)+5\\=2(-1)((-1)-1)+5\\=-2(-2)+5\\=4+5\\=9$