1.

Factorise using factor theorem​

Answer»

GIVEN equation

x^{2} -6x-7=0 \\

Solving, we GET,

x^{2} -6x-7=0

\implies x^{2} -7x+x-7=0

\implies x(x-7)+1(x-7)=0

\implies (x+1)(x-7)=0

Now,

x+1=0\\\implies x = -1

x-7=0\\\implies x = 7

\boxed{\boxed{\bold{Therefore, \ the \ factorised \ expression \ is \ (x+1)(x-7)}}}}}}}}}

                                                           


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