Question

What is the exact value of the expression 6the square root of y to the eighth power. − the square root of 9 times y to the fourth power. + 3the square root of y to the eighth power. − the square root of y to the fourth power.? Simplify if possible.
y4
9y4 − 4y2
3y4 − 10y2
y2

Answer 1

simplify it? i can barely read it

Answer 2

6the square root of y to the eighth power. − the square root of 9 times y to the fourth power. + 3the square root of y to the eighth power. − the square root of y to the fourth power.

Answer 3

\[\large 6\sqrt{y^8}-9y^4+3\sqrt{y^8}\]

Answer 4

\[\large 6\sqrt{y^8}-9y^4+3\sqrt{y^8}-\sqrt{y^4}\]

Answer 5

second one close?

Answer 6

\[\large 6\sqrt{y^8}-9\sqrt{y^4}+3\sqrt{y^8}-\sqrt{y^4}\]

Answer 7

how about that one?

Answer 8

seccood one 9 has a square root sign

Answer 9

\[\large 6\sqrt{y^8}-\sqrt{9y^4}+3\sqrt{y^8}-\sqrt{y^4}\]

Answer 10

got it on the third try
how many times does 2 go in to 8 ?

Answer 11

ya

Answer 12

really it is that simple
half of 8 is 4 so you get \[\large 6\sqrt{y^8}-\sqrt{9y^4}+3\sqrt{y^8}-\sqrt{y^4}\]
\[=\large 6y^4-\sqrt{9y^4}+3y^4-\sqrt{y^4}\]

Answer 13

4

Answer 14

then half of 4 is 2 giving \[=\large 6y^4-\sqrt{9y^4}+3y^4-\sqrt{y^4}\]
\[==\large 6y^4-3y^2+3y^4-y^2\]

Answer 15

then combine like terms
you good from there or no?

Answer 16

b right

Answer 17

right