Question

Algebraic expressions..
Evaluate 3x-y2 for x = -3/4 and y = -2/5

Answer 1

you replace x by -3/4 and y by -2/5 in the expression and work it out.

= 3*(-3/4) - (-2/5)^2

Answer 2

I know i plug it it in so it would be 3(-3/4) - (-2/5)^2
right?

Answer 3

yes

Answer 4

i dont like working with fractions i always get confused

Answer 5

multiplying fractions is not too difficult
just multiply top and bottom:-