Question

someone help me simplify this please :)
(4r-9)^2

Answer 1

(a-b)^2=a^2-2ab+b^2

Answer 2

\[4r^2 - 81 \] ??
@AlexandervonHumboldt2

Answer 3

@FibonacciChick666

Answer 4

do you know how to FOIL? a square is the same as the quantity times itself, so what is \[(4r-9)(4r-9)\]

Answer 5

\[16r^2-72r+81 \] ?
@FibonacciChick666

Answer 6

that looks better, let me check it

Answer 7

yep, I agree

Answer 8

thanks for ur help :D

Answer 9

np

Answer 10

can u help me with a couple more please

Answer 11

make new questions and tag me

Answer 12

alright