x-8/x -7x-23/11x
subtract and simplify if possible
is it x - (8/x) - 7x - (23/11x) ???
better to type them out like this 8 23 x - ---- - 7x - ------ x 11x
i also want to learn how to do this easily
@ moongazer using wolfram and such other tools gives u just answers and you never learn how the question is really done........
ok i have 6 i need help with instead of posting them separtate ill post them in an attachment written as the look on my study guide
ok all are posted as they should look in the attachment
ok now they r clear...
6 y + 6 1 + ----- = -------- (Taking LCD) y y 36 y^2 - 36 1 - ------- = ----------- (Taking LCD) y^2 y^2
6 y + 6 1 + ----- -------- y y y + 6 y^2 ------------- = ------------ = ------- * --------- 36 y^2 - 36 y y^2 - 36 1 - ------- ---------- y^2 y^2
y+6 y * y = ------ * --------- y y^2 - 6^2 y + 6 y*y = ------ * -------------- (Using identity a^2 - b^2 = (a-b)(a+b) y (y-6) (y+6) Now cancelling common factors from numerator and denominator y = ------- y - 6
Clear ?????
i think so thanks for explaining it
no 2) x-8 7x -23 11(x-8) -(7x-23) ------ - --------- = ---------------- (Taking LCD) x 11x 11x 11x - 88 - 7x + 23 4x - 65 = ------------------ = --------- 11x 11x
Clear????
yes so far
no 3) 4 9 4 9 -------------- - ----------- = ------------- - --------- 11z^2 - 11z 11z - 11 z ( 11z - 11) 11z - 11 4 - 9 (z) -9z + 4 = -------------- = ------------- z(11z - 11) 11z^2 - 11z
@panther I have done three of them... now i gotta run for something urgent....... Pls post the rest again for someone else to help or you can do them and send another attachment with working . I'll check later........
ty
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