verify whether x is equal to minus one upon under root 5 and 1 upon under root 5 hour zero of a polynomial 5 x square minus one
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p(x) = 5x²-1
Factors given → x= -1/√5 , x=1/√5
Checking factors
→ P (-1 / √5) = 5 × ( -1 / √5 )² - 1
→ 5 × 1 / 5 - 1
→ 1 - 1
→ 0
( x + 1/√5 ) is a factor of p(x)=5x²-1
→ P ( 1 / √5 ) = 5 × ( 1 / √5 )² - 1
→ 5 × 1 / 5 - 1
→ 1 - 1
→ 0
( x - 1/√5) is a factor of p(x)=5x²-1
@:-)
p(x) = 5x²-1
Factors given → x= -1/√5 , x=1/√5
Checking factors
→ P (-1 / √5) = 5 × ( -1 / √5 )² - 1
→ 5 × 1 / 5 - 1
→ 1 - 1
→ 0
( x + 1/√5 ) is a factor of p(x)=5x²-1
→ P ( 1 / √5 ) = 5 × ( 1 / √5 )² - 1
→ 5 × 1 / 5 - 1
→ 1 - 1
→ 0
( x - 1/√5) is a factor of p(x)=5x²-1
@:-)
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