Question 61
Solve the following:
5(x-1)-2(x+8)=0
Given, 5(x-1)-2(x+8)=0 ⇒5(x−1)−2((x+8)=0⇒5x−5−2x−16=0⇒3x−21=0⇒3x=21⇒3x3=213∴x=7
Question 73
5x+12x=−13
Question 50
5x2x−1=2
Question 1 (ii)
Find the roots of the quadratic equations by using the quadratic formula in the following question 5x2+13x+8=0.