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2 years ago

Solve for the value of x :-5(x+4)+5(2-x)

Mathematics

1 answer:

Mariulka [41]2 years ago

6 0

Answer:

$30$

Step-by-step explanation:

Given expression:

$5(x + 4) + 5(2 - x)$

Note: The value of "x" is undefined because the given sum is not an equation. Thus, I will simplify the expression as much as possible.

Let us simplify all the distributive properties stated in the expression.

Apply the distributive property rule [a(b + c) = ab + ac]

$\implies5(x) + 5(4) + 5(2) - 5(x)$

Since 5(x) is being subtracted from 5(x), we get:

$\implies 5(x) + 5(4) + 5(2) - 5(x)$

$\implies 5(4) + 5(2)$

Finally, let us simplify the sum of the product of (5 and 4) and (5 and 2).

$\implies20 + 10$

$\implies \boxed{30}$

Learn more about one-variable expressions: brainly.com/question/15139917

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Answer:

Step-by-step explanation:

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use the graphing calculator to graph the quadratic function y = x2 − 5x − 36. Which value is a solution of 0 = x2 − 5x − 36?

daser333 [38]

The solutions of the quadratic equation x² - 5x - 36 = 0 are -4 and 9.

The graph is attached below.

We are given a quadratic function.
A polynomial equation of degree two in one variable is a quadratic equation.
The function given to us is :
y = x² - 5x - 36
We need to find the solution of the quadratic function.
To find the roots, let y = 0.
x² - 5x - 36 = 0
Use the quadratic formula.
In elementary algebra, the quadratic formula is a formula that gives the solution(s) to a quadratic equation.
x = [-b±√b²-4ac]/2a
x = [-(-5) ± √25 - 4(1)(-36)]/2(1)
x = (5 ± √25 + 144)/2
x = (5 ± √169)/2
x = (5 ± 13)/2
x = 9 or x = -4