katehoward1 katehoward1

01-02-2016
Mathematics

contestada

If x=4, calculate the value of: x2 +2x

Respuesta :

taskmasters taskmasters

01-02-2016

If x = 4

x² + 2x = 24

Substitute x by its value

4² + 2(4)
16 + 8 = 24

Answer Link

01-02-2016

We simply need to plug in x = 4 into x² + 2x

So plugging in x = 4, we get:

4² + 2(4)

Simplifying it, we get:

16 + 2(4)
16 + 8
24

When x = 4, x² + 2x will equal 24.

Answer Link

Otras preguntas

How do you divide fractions

which countries was major provider of arms and supplies to North Vietnam during the war? a. United States b. South Korea c. Australia d. China I really need th

Bible stories have long, involved descriptions.

Based on what you know about suffixes , what does the suffix -tion mean

Why are seed plants an evolutionary advantage

Given the following functions f(x) and g(x), solve (f ⋅ g)(2) and select the correct answer below: (1 point) f(x) = 2x2 − 10 g(x) = x + 9 −22 22 −66 66

A cylindrical tank has a radius of 4.5 ft and an altitude of 14 ft. If a gallon of paint will cover 130 ft squared ft2 of surface, how much paint in gallons i

please explain and help me thanks (posted a picture)

wich of the following sentences contains two ideas joined by a connecting worf

What is the least common denominator of 17/50 and 4/15