Question

solve eq by factorisation
x2-18x+77=o​

Answer 1

x

2

−18x+77=0

x

2

−7x−11x+77=0

x(x−7)−11(x−7)=0

(x−11)(x−7)=

either (x−11)=0 or (x−7)=0

x=11 or 7

Answer 2

Answer:

roots are 7 and 11

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