Question

Find the value of the expression 5x^2+5x-2 if x =-1​

Answer 1

⭐ Question : Value of 5x² + 5x - 2 when x = -1

⭐ Answer : -2

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5x² + 5x - 2

⇒ 5 × x² + 5 × x - 2

Substitute the value of x

⇒ 5 × (-1)² + 5 × (-1) - 2

⇒ 5 × 1 + 5 × (-1) - 2

⇒ 5 + (-5) - 2

⇒ 5 - 5 - 2

⇒ -2

Answer 2

Answer:

=> -2

Step-by-step explanation:

As per the data given in the question, we have to find the value of the expression,

Given expression:-

$5x^2+5x-2$

If $x =-1$

Now, put the value of x as (-1) in the given expression

=> $5x^2+5x-2$

=> $5(-1)^2+5(-1)-2$

=> $5+(-5)-2$

=> -2

Hence, the value of the expression is -2.