please solve this activity fast
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1) x²-4x-5
x²-5x+1x-5
x(x-5)-1(x+5)
thus x=5 or 1
2). 2m²-5m =0
m(2m-5) =0
thus m=0 and 5/2
3). a²-25 =0
a²= 25
thus a= +5 or -5
hope this will help you
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