If alpha , beeta are the roots of x2-2x+4=0 , then alpha 5+beta 5 is equal to
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x²-2x+4 = 0
it is in form of ax²+bx+c = 0 so
a = 1 ; b ° -2 ; c = 4
alpha = -b/a
alpha = -(-2)/1
alpha = 2
beta = c/a
beta = 4/1
beta = 4
alpha 5+ beta 5
= 2(5)+4(5)
= 10+20
= 30
it is in form of ax²+bx+c = 0 so
a = 1 ; b ° -2 ; c = 4
alpha = -b/a
alpha = -(-2)/1
alpha = 2
beta = c/a
beta = 4/1
beta = 4
alpha 5+ beta 5
= 2(5)+4(5)
= 10+20
= 30
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