Question 3(d)
Pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.
q2=7(7,2,10,14)
Given equation is q2=7
Value of q Value of q2(i) 7 72=3.5(ii) 2 22=1(iii) 10 102=5(iv) 14 142=7
Only case (iv) is satisfying the given equation.
∴ q=14 is the solution.