WAEC Mathematics 2022 Paper

Question : 47

Total: 47

Solve 6x

^2

= 5x - 1

Solution:

6x $^2$ = 5x - 1

→ 6x $^2$ - 5x + 1 = 0

Factorization:

factors are -3x and -2x

6x $^2$ - 3x -2x + 1 = 0

(6x $^2$ - 3x) (-2x + 1) = 0

3x(2x-1) -1(2x-1) = 0

(3x-1) (2x-1) = 0

x = $\;\frac{1}{2}$ , $\;\frac{1}{3}$

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