Math, asked by kewat96, 4 months ago

*If x = -2 then find the value of the polynomial x² + 5x -10.*

1️⃣ 24
2️⃣ -24
3️⃣ 16
4️⃣ -16​

Answers

Answered by utsavsinghal
2

Answer:

x²+5x-10

Put x=-2

4-10-10

=-16

Step-by-step explanation:

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Answered by pulakmath007
0

If x = - 2 then the value of the polynomial x² + 5x - 10 is - 16

Given :

The polynomial x² + 5x - 10

To find :

The value of the polynomial x² + 5x - 10 when x = - 2 is

1️⃣ 24

2️⃣ - 24

3️⃣ 16

4️⃣ - 16

Solution :

Step 1 of 2 :

Write down the given polynomial

Let p(x) be the given polynomial

Then we have

p(x) = x² + 5x - 10

Step 2 of 2 :

Find the value of the polynomial when x = - 2

The value of the polynomial when x = - 2

 \sf= p(-2)

\displaystyle \sf{  =  {( - 2)}^{2} + 5 \times ( - 2) - 10  }

\displaystyle \sf{  = 4 - 10 - 10  }

\displaystyle \sf{  = - 16  }

Hence the correct option is 4️⃣ - 16

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