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Answered by
0
Answer:
x=10,-6
Step-by-step explanation:
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Answered by
1
Answer:
=>x²-2x-15=0
=>x²-(5-3)x-15=0
=>x²-5x+3x-15=0
=>x(x-5)+3(x-5)=0
=>(x-5)(x+3)=0
Either, or,
x-5=0 x+3=0
x=5 x= -3
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