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42 votes
42 votes
Please help!!!!!!!!!!!!

Please help!!!!!!!!!!!!-example-1
User Polarize
by
2.5k points

2 Answers

7 votes
7 votes

Hey ! there

Answer:

  • Option D. 39 is correct answer

Explanation:

In this question we are given an expression that is + + x and value of x is equal to 3 . And we are asked to find the value of expression when value of x is 3 .

Solution : -


\quad \dashrightarrow \qquad \: x {}^(3) + x {}^(2) + x

Now substituting value of x as 3 in it ,


\quad \dashrightarrow \qquad \: 3 {}^(3) + 3 {}^(2) + 3


\quad \dashrightarrow \qquad \: 27 + 9 + 3


\quad \dashrightarrow \qquad \: 36 + 3


\quad \dashrightarrow \qquad \: \blue{\underline{\boxed{\frak{39}}}} \quad \bigstar

  • Henceforth , value of expression when x is equal to 3 is 39 .
  • Therefore , Option D is correct.

#Keep Learning

User Vinkal
by
2.9k points
4 votes
4 votes

Hey mate ,

The equation given is ++x

  • It has asked what would be the value of equation if we substitute 3 as the value of x

There are many ways to solve the equation ,

Lets use the simple one ,

When we substitute 3 at the place of x , we get

= x³+x²+x

= 3³ + 3² + 3

= 27 + 9 + 3

= 39

When we substitute 3 at the place of x we get 39

User Tim Hovius
by
3.2k points
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