Question

Question

(x-7)(x-9)=195​

Answer 1

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⏬ANSWER⏬

Or, X² – 7x – 9x + 63 – 195 = 0

Or, X² – 16x – 132 = 0

Or, X² – 22x + 6x – 132 = 0

Or, X(x–22)+6(x+6) = 0

Or, (x–22)(x+6) = 0

Either, X–22=0

then X = 22

Or , X+6 =0

then X=–6 (Ans)

Hope this helps you ♥

Answer 2

(x - 7(x - 9) = 195

 

 x^2 - 9x - 7x + 63 = 195

x^2 - 16x + 63 = 195

  x^2 -16x + 63 - 195 = 0

  x^2 - 16x - 132 = 0

x^2 - 22x + 6x - 132 = 0

x(x - 22) + 6(x - 22) = 0

(x + 6)(x - 22) = 0

x = -6 (or) 22.

x=-6