1.
If a and ß be the roots of x2 + 7x + 12 = 0 find the equation whose roots are (a+B) and
(a --B).
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Step-by-step explanation:
a + B = -7 a*B = 12
( a - B) square = (a + B) square - 4 a *B
= (-7) square - 4 (12 )
= 49 - 48
= 1
a - B = 1 or -1
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