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goldfiish [28.3K]
3 years ago
13

Which expression is equivalent to (5x - 4)2?

Mathematics
2 answers:
pogonyaev3 years ago
8 0

Answer:

10x-8

Step-by-step explanation:

Apply the distributive law: a(b-c)=ab-ac

a=2,b=5x.c=4

2x5x-2x4

simplify

=10x-8

Bond [772]3 years ago
7 0

Answer:

Step-by-step explanation:

the answer is 25x^2-40x+16

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Last year there were 120 students in choir. This year, 30% more students took choir. How many students are taking choir this yea
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the sum of three numbers is 79. The second number is 5 times the first, while the third is 16 more than the first. Find the Numb
faust18 [17]
Let the 1st number be x; 2nd number be y; 3rd number be z.

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x = number we are looking for.
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Therefor,

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To check. Substitute x by 9.

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Answer:

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