3.(a)Solve the quadratic equation -x^2 +x- 2 = 0
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Step-by-step explanation:
=>x²+x-2=0
=>x²+(2-1)x-2=0
=>x²+2x-x-2=0
=>x(x+2)-(x+2)=0
=>(x+2)(x-2)=0
Answered by
0
Step-by-step explanation:
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