Question

Factorise :
x^2-23x+42​

Answer 1

I hope it helps you

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. thank you

Answer 2

${x}^{2} - 23x + 42 \\ \\ {x}^{2} - 21x - 2x + 42 \\ \\ x(x - 21) - 2(x - 21) \\ \\ (x - 2)(x - 21)$