Question

In the formula $p^4-q^3=r^2-s$, make $p$ as the subject of the formula.

• A. $p=\left(r^2-q^3-s\right)^{\frac{1}{4}}$
• B. $p=\left(r^2-q^3+s\right)^{\frac{1}{4}}$
• C. $p=\left(r^2+q^3+s\right)^{\frac{1}{4}}$
• D. $p=\left(r^2+q^3-s\right)^{\frac{1}{4}}$

Answer 1

Answer: (D)

(i) Apply transposition.
(ii) First write $p^4$ as subject.
(iii) Apply $\sqrt[4]{ }$ on both the sides.