Question

n
9
2) a and Bare the roots of the equation x² - 4x- 6 = 0. Complete the following activity to find the
value of a? + B?
Solution: Comparing x² - 4x - 6 = 0 with ax? + bx + c = 0
a = 1; b = -4; C = = -6
-(-4)
a + B
αβ :
a? + B2 = (a + B)-1
= 4² – 2x (-6)
= 28
-b
= 4
=
1
+​

Answer 1

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