Question

Evaluate the following expression using the values given:

Find 3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.

Answer 1

What do you need help with.

Answer 2

to find the answer

Answer 3

Lol. Just sub in the values.

Answer 4

you can easily do that with a claculator. and bedmas/pedmas

Answer 5

= 3*3^2 − 2*(−2)^3 − 5
= 3*9 − 2*(−8) − 5
= 27 + 16 − 5
= 38

Answer 6

or
Take your calculator.
Everywhere you see and x, replace it with (3) 3 in brackets.
Same for y and z.

and also
By hand.
Work out x^2, y^3. and replace them in the equation with your result (in brackets).
Remember that 27 - (-8) will change to 27 + 8
etc.

Answer 7

all good now logan?