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Exercise

$x^2+x+1;\:x=2$

Step-by-step Solution

1

Calculate the numerical value for $x^2+x+1$ when $x=2$. Replace the unknowns with their corresponding values

$2^2+2+1$
2

Add the values $2$ and $1$

$2^2+3$
3

Calculate the power $2^2$

$4+3$
4

Add the values $4$ and $3$

$7$

Final answer to the exercise

$7$

Try other ways to solve this exercise

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  • Integrate by partial fractions
  • Product of Binomials with Common Term
  • FOIL Method
  • Integrate by substitution
  • Integrate by parts
  • Integrate using tabular integration
  • Integrate by trigonometric substitution
  • Weierstrass Substitution
  • Prove from LHS (left-hand side)
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Similar Questions Solved

$y'\left(x\right)=x^3\cdot y\:;\:y\left(0\right)=1$

$y=\frac{4}{x},\:x=1,\:x=2$

$x=0,y=1$

$28-2m,\:con\:m=7$

$-\left(x-y+1\right)^2,yo=1$

$23x,para\:x=4$

$y\:=\:3x2\:-\:6,\:si\:x=-2\:$

Main Topic: Numerical value of an algebraic expression

The numerical value of an algebraic expression is the result obtained by substituting the variables by a numerical value given.

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