Question

If x=5, find the value of x2 +5x +7.​

Answer 1

Answer:

The expression is 8x-18x−1 .

The value at x=2 is 15.

Step-by-step explanation:

Given : Expression 3(x+2)+5x-73(x+2)+5x−7

To find : Simplify the expressions and find the value of x is equal to 2 ?

Solution :

Writ the expression as,

f(x)=3(x+2)+5x-7f(x)=3(x+2)+5x−7

Solve,

f(x)=3x+6+5x-7f(x)=3x+6+5x−7

f(x)=8x-1f(x)=8x−1

Substitute the value of x=2,

f(2)=8(2)-1f(2)=8(2)−1

f(2)=16-1f(2)=16−1

f(2)=15f(2)=15

#Learn more

Simplify the expression and find the value of x+7+4(x-5) if x=2

Step-by-step explanation:

Here is your answer

Answer 2

Answer:

x=5

5*2+5*5+7

10+25+7

=42