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agasfer [191]
2 years ago
15

Hey Please Answer This Question For Me Please?

Mathematics
2 answers:
Andreas93 [3]2 years ago
8 0

Answer:

A. 71

Step-by-step explanation:

<em>3x^2 - 5x +3 with x= - 4</em>

<em>3x^2 - 5x +3 with x= - 4substitute the x with -4</em>

3×(-4)^2 - 5× (-4) +3=

=3×(-4)×(-4) +20 +3=

=3×16 +20+3=

=48+23=71

Soloha48 [4]2 years ago
7 0
Answer: A
Explanation:
Basically, it points out the value of x, meaning you have to define x as that number so you plug -4 for x.
How I plugged it in: 3(-4)^2-5(-4)+3
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The solution to the equation x(x+4) = 6 is x = -2 + √10 or x = -2 - √10 after solving with the quadratic formula.

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0 where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

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We have an equation:

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By distributive property:

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Plugging all the values in the formula:

\rm x = \dfrac{-4 \pm\sqrt{4^2-4(1)(-6)}}{2(1)}

After calculating:

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Thus, the solution to the equation x(x+4) = 6 is x = -2 + √10 or x = -2 - √10 after solving with the quadratic formula.

Learn more about quadratic equations here:

brainly.com/question/2263981

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