Question

Find the quadratic equation if one root is 9 - 4√5.

Answer 1

Answer:

x^2-18x+33

Step-by-step explanation:

GIVEN :9-4✓5

Hence this is the root of the quadratic equation

SO,X=9-4√5

X-9 = -4√5

(Squaring both the sides)

(X-9)^2 = (-4√5)^2

x^2+81-18X = 80

x^2-18x+1 =0 ------this is the Answer

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