Question

Value of expression 2x(x+1)+1forx=-1 is:

Answer 1

Answer:

2 × 1(1 + 1) = 2(2) = 4

Step-by-step explanation:

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Answer 2

The value of the expression 2x( x + 1 ) for x = 1 is 4

Given :

The expression 2x( x + 1 )

To find :

The value of the expression for x = 1

Solution :

Solution :Step 1 of 2 :

Write down the given expression

The expression is 2x( x + 1 )

Step 2 of 2 :

Find value of the expression for x = 1

For x = 1 we have

$\sf 2x(x + 1)$

$\sf = 2 \times 1 \times (1 + 1)$

$\sf = 2 \times 1 \times 2$

$\sf = 4$

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