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tatyana61 [14]
2 years ago
5

Find the value of the expression: x(x-y)-y(y^2-x) for x=4 and y=2

Mathematics
1 answer:
svet-max [94.6K]2 years ago
4 0

Replacing x by 4 and y by 2, it is found that the value of the expression is of 8.

The expression given is:

x(x - y) - y(y^2 - x)

We want to evaluate it for x=4 and y=2, hence, we replace x by 4 and y by 2, then:

4(4 - 2) - 2(2^2 - 4) = 4(2) - 2(0) = 8

The value of the expression is of 8.

A similar problem, in which the objective is finding the value of an expression, is given at brainly.com/question/19548262

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3 years ago
HELP ASAP PLEASE.
ValentinkaMS [17]

Answer:

pls give brainlist

Step-by-step explanation:

a. \frac{50 blocks (L)}{9 blocks(W)\\}  50 x 9 = 450. A=450

b. I can scale the unit rate of the area given above and largen the area of the map. Ex. \frac{7}{3}=\frac{21}{6} <---(scaled by 2)

Then we can enlarge it however we want so,

\frac{21}{6} = \frac{42}{12}  <--(scaled by 2 once more)

If the statement above is true then we can scale times 4.

\frac{7}{3}= \frac{42}{12}\\ <---(scaled by 4)

A= \frac{42}{12\\}

all i can give u at the moment , if u go on M a t h w a y it can help

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Read 2 more answers
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