Question

Help!

Answer 1

hi ...

Answer 2

?????

Answer 3

please explain how the first equation becomes the second equation

Answer 4

plug 3x^2/4 into h^2

Answer 5

so you will get x^2/4 + 3x^2/4

Answer 6

=x^2

Answer 7

thats how 2nd equation becomes first equation...

on how first becomes the second,

subtract x^2/4 on both sides to isolate h^2

Answer 8

yeh

Answer 9

i hate typing now

Answer 10

\(x^2/4 + h^2 =x^2 \\ x^2/4 - x^2/4 + h^2 = x^2 - x^2/4 \\ h^2 = x^2 (1-1/4) = .. \)

got these steps?

Answer 11

um

Answer 12

this is the actual question.

Answer 13

i just don't understand the part where \[\frac{ x^2 }{ 4 } +h^2 =x^2 \rightarrow h^2 = \frac{ 3x^2 }{ 4 }\]

Answer 14

sry

Answer 15

yeah,
x^2/4 is moved to other side of =
by subtracting it from both sides

Answer 16

\(x^2/4 + h^2 =x^2 \\ x^2/4 - x^2/4 + h^2 = x^2 - x^2/4 \\ h^2 = x^2 (1-1/4) =x^2 (3/4) = 3x^2/4 \)

Answer 17

oh i think i get it now.

Answer 18

\[x^2\]

Answer 19

how does this turn into a fraction?

Answer 20

x^2 - x^2/4

now we see "x^2" in both the terms
so we factor it out.

x^2 (1-1/4)

that makes it x^2 * (3/4) or 3x^2/4