Question

(0.3x-0.5y)^2 please tell me fast

Answer 1

0.3x+0.5y=0.5

0.5x+0.7y=0.74.

Multiply both the equations by 10, we get

3x+5y=5...(1)

5x+7y=7.4...(2)

Multiply (1) by 7 and (2) by 5. And subtract both the equations.

−4x=−221x+35y=3525x+35y=37−−−

x=−4−2=21=0.5

Substitute the value of x in equation (1), we have

3(0.5)+5y=5

y=0.7

Answer : x=0.5 and y=0.7

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Answer 2

Answer:

$(0.3x + 0.5)2$