Question

solve each of the following equations
show all of your working, do nor use trial and improvement

a) $\sqrt{p}$ = x + 8

x = ..............

b) x + $p^{2}$ = 4 - x

x = ................

c) 3$p^{3}$ - 5 = 5x + 2

x = ...................

Answer 1

a. x = √p - 8

b. x = (4-p^2)/2 or 2- 1/2p^2

c. x = (3p^3 -7)/5