Write the solution set
of the equation x²+x-20=0
in roaster form
Answers
Answered by
3
Step-by-step explanation:
x²+x-20=0
x²-4x+5x-20
x(x-4)+5(x-4)
(x+5)(x-4)
x=-5,4
x={-5,4}
Hope it is helpful
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