2 years ago

What is the product? negative 9 x (5 minus 2x)

Mathematics

2 answers:

dangina [55]2 years ago

7 0

Never use x to represent multiplication in algebra because it gets confused with the variable x.

I will assume that you meant to type

-9 times (5 - 2x).

Answer: -45 + 18x.

If you meant to type -9x(5 - 2x), then the answer is -45x + 18x^2.

s2008m [1.1K]2 years ago

4 0

Answer:

18x²-45x

Step-by-step explanation:

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Find all complex solutions of 3x^2+2x+5=0 . (If there is more than one solution, separate them with commas.)

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Answer:

$\large\boxed{-\dfrac{1}{3}-\dfrac{\sqrt{14}}{3}i,\ -\dfrac{1}{3}+\dfrac{\sqrt{14}}{3}i}$

Step-by-step explanation:

Use

$ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$3x^2+2x+5=0\\\\a=3,\ b=2,\ c=5\\\\b^2-4ac=2^2-4(3)(5)=4-60=-56\\\\\sqrt{b^2-4ac}=\sqrt{-56}=\sqrt{(4)(-14)}=\sqrt4\cdot\sqrt{-14}=2\sqrt{-14}$

Use

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Therefore:

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3 years ago

What is the first ordered pair and the second ordered pair?

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Dimension of tank is 12m by 8m by 5m

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