Question

can someone answer this quick question, i am having a brain bubble.... for 2(5x-4)^2 would you foil 5x-4 thennn multiply it by 2 or should i multiply thennn foil?

Answer 1

"foil" first
order 'o operations say exponents first, multiplication second

Answer 2

\[2(5x-4)(5x-4)\]in other words

Answer 3

so i would take (10x^2-20x-20x+16) and multiply it by two to get 20x^2+80x+32?

Answer 4

yes, except that that is not correct

Answer 5

the first term is wrong since \(5x\times 5x=25x^2\) and not \(10x^2\)

Answer 6

hahah oooops. 5 x 5 is 25....

Answer 7

yeah hahah. ooopsie. but thank you so much!!

Answer 8

also the middle term should be \(-80x\) not \(+80x\)

Answer 9

thank you! ((:

Answer 10

yw