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2 years ago

How to solve (x-10)(x + 10)

Mathematics

2 answers:

alexandr402 [8]2 years ago

6 0

Answer:

x² - 100

Step-by-step explanation:

Use the FOIL method. The FOIL method is the way in which you multiply the terms:

FOIL stands for First, Outside, Inside, Last. Multiply:

First:

x * x = x²

Outside:

x * 10 = 10x

Inside:

-10 * x = -10x

Last:

-10 * 10 = -100

Combine like terms:

x² + 10x - 10x - 100

x² + (10x - 10x) - 100

x² - 100

x² - 100 is your answer.

Fynjy0 [20]2 years ago

4 0

Answer:

x^2-100

Step-by-step explanation:

Use the F.O.I.L method

x^2+100x-100x-100

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olga_2 [115]

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2 years ago

Divide 25/1658 To find the quotient, start by dividing _<br> into _.

ololo11 [35]

Answer:

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Step-by-step explanation:

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3 years ago

The average weight of 3 containers A,B and C is 3.2kg. Container A is twice as heavy as container B. Containers B is 400 g heavi

dlinn [17]

Answer:

The weight of container C is 2.1kg.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x is the weight of container A.

y is the weight of container B.

z is the weight of container C.

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400g is 0.4kg. So

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4 0

3 years ago

Through: (-3,-4) and (0,4)

12345 [234]

Answer:

The slope = 8/3

Step-by-step explanation:

Let's find the slope between your two points.

(−3,−4);(0,4)

(x1,y1) = (−3,−4)

(x2,y2) = (0,4)

Use the slope formula:

m= y2−y1 / x2−x1

= 4 − −4 / 0 − −3

= 8/3

Answer:

m = 8/3

Graph:

hope this helps and is right :)

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2 years ago

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Nonamiya [84]

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r=rate\\
t=years\to &\frac{1}{12}
\end{cases}
\\\\\\
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3 years ago