Question

15.Factorise x - 23x + 142x - 120.
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Answer 1

Answer:

x-23x+142x-120

143x-23x-120

120x-120

120(x-1)

x=1/120

hope it will help u

Answer 2

Step-by-step explanation:

Hey mate,,

Correct question :-

Factorise

x ^2- 23x + 142x - 120.

Solution :-

x^2 - 23x + 142x - 120

${x}^{2} + 119x - 120 \\ \\ = > \\ {x}^{2} + 120x - x - 120 \\ = > taking \: common \\ = > x(x + 120) - 1(x + 120) \\ = > (x - 1) \: \: (x + 120) \\ = > x = 1 \: or = > x = - 120$