Factorise 15x-5
factorise x^2-5x+6

❶ Factorise :- 15x - 5

Solution :-

→ 15x - 5

Factor out 5 from the given Expression

→ 5(3x - 1)

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❷ Factorise :- x² - 5x + 6

Solution :-

→ x² - 5x + 6

Rewrite -5x as a difference

→ x² - 2x - 3x + 6

Factor out x form the expression

→ x × (x - 2) - 3x + 6

Factor out -3 form the expression

→ x × (x - 2) - 3 (x -2)

Factor out x-2 from the expression

→ (x - 2) × (x - 3)

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.