Question

Solve 4r^2 – 9 = 91.



{± 3}
{± 4}
{± 5}
{±6}

Answer 1

\[4r^2-9=91\]

Answer 2

bring the -9 to the RHS

Answer 3

4x^2-9=91
4x^2=91+9
4x^2=100
x^2=100/4
x^2=25
x=_+5

Answer 4

so c is your right answer

Answer 5

i think that makes sence, thank you

Answer 6

welcome bananas :) can you please send me a milk shake of banana bc here weather is too hot lol

Answer 7

so where are you am from Asia lol

Answer 8

im from somewhere :)

Answer 9

okay then somewhere..

Answer 10

got to get back to school work

Answer 11

well u are not supposed to give direct answers :)

Answer 12

yes.