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OpenStudy (anonymous):
Algebraic expressions.. Evaluate 3x-y2 for x = -3/4 and y = -2/5
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OpenStudy (welshfella):
you replace x by -3/4 and y by -2/5 in the expression and work it out. = 3*(-3/4) - (-2/5)^2
OpenStudy (anonymous):
I know i plug it it in so it would be 3(-3/4) - (-2/5)^2 right?
OpenStudy (welshfella):
yes
OpenStudy (anonymous):
i dont like working with fractions i always get confused
OpenStudy (welshfella):
multiplying fractions is not too difficult just multiply top and bottom:- |dw:1440933535144:dw|
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