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vazorg [7]
3 years ago
8

Multiply. (5x + 4)(5x+4)

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
7 0

Answer:

25x^2+40x+16

Step-by-step explanation:

We have to distribute each term to the other terms.

Let's take the first 5x and multiply it by 5x and 4 in the second set of parentheses.

5x*5x+5x*4

25x^2+20x

Now we have to multiply the first 4 by, again, 5x and 4

4*5x+4*4

20x+16

Now we combine the two bolded expressions.

25x^2+20x+20x+16

Now we combine like terms

25x^2+40x+16

Hope this helps!

Fiesta28 [93]3 years ago
3 0

Answer:

25x^2 + 40x + 16

Step-by-step explanation:

(5x + 4)(5x+4) is the square of a binomial:  (5x + 4)^2.

The formula for this follows:  (a + b)^2 = a^2 + 2ab + b^2

So, (5x + 4)^2 = 25x^2 + 40x + 16

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Henry was thinking of a number Henry halves it and gets a an answer of 12.4 what was the original number
jeka94
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Explanation: If Henry is halving a number, that means he's dividing it by 2, getting two halves. You would get the original number by undoing that division, or multiplying the product by 2.
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3 years ago
Find the quotient...<br><br> 3/11 divided by 9/13<br><br> Simplify your answer...
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Answer:

y = -6

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Step-by-step explanation:

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then

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from the first eq.

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check:

from the second eq.

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2 years ago
What is 7/24 by 35/38
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7/24 / 35/38 = 7/24 * 38/35 = (7 * 38) / (24 * 35) = 19/60

<span>The correct result would be </span>19/60<span>.</span></span></span>
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