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3 years ago

How do you do mental math with 326+402=

Mathematics

1 answer:

Zepler [3.9K]3 years ago

8 0

Answer:

id just add it

Step-by-step explanation:

326+402= 728

but im not sure

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Expand . ( 3x –2 ) 2 please help me with this.

Ainat [17]

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Answer: $\textsf{9x}^2\textsf{ - 12x + 4}$

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Given: $\textsf{(3x - 2)}^2$

Find: $\textsf{Simplify the expression}$

Solution: It looks like 2 is at the end of the parenthesis where the power would be instead of distributing the number. If so the following steps would be followed.

<u>Expand</u>

$\textsf{(3x - 2)}^2$

$\textsf{(3x - 2)(3x - 2)}$

$\textsf{(3x * 3x) + (3x * (-2)) + (3x * (-2)) + (-2 * (-2))}$

<u>Simplify</u>

$\textsf{9x}^2\textsf{ - 6x - 6x + 4}$

$\textsf{9x}^2\textsf{ - 12x + 4}$

Therefore, after following the provided information we are able to determine that the expanded form would be 9x^2 - 12x + 4.

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2 years ago

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A farmer has 113 sheep. 47 of them are males. How many more female sheep are there than male sheep?

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Considering the rest of the sheep are females, you just subtract 47 from 113.

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3 years ago

A lock has a code of 4 numbers between 1 and 20. If no numbers in the

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Find the value of x .

pantera1 [17]

Answer:

Step-by-step explanation:

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NH.HT=MH.HY

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x+20=12*20/8

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