EM-1649

Changing the subject of a formula

E Math · Secondary 4 · Medium · Changing the subject of a formula

It is given that

k p^2 = m - 5p^2

.
Find

p

in terms of

k

and

m

.

$p = \pm\sqrt{\dfrac{m}{k+5}}$
$p = \pm\sqrt{\dfrac{m}{k-5}}$
$p = \dfrac{m}{k+5}$
$p = \pm\sqrt{m(k+5)}$

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