solve .............
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Answered by
2
Answer:
x²-7x=18
x2-7x-18=0
x²-9x+2x-18=0
x(x-9)+2(x-9)=0
(x+2)(x-9)=0
Answered by
2
Answer:
9
Step-by-step explanation:
squaring => x(x-7)=18
substitute 9 lhs = rhs
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