Question

2) If a and B are the roots of x2 + 5x - 1 =0, then find (a + b)2.
a)-1 b) 25 c)-25
d) 1
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Answer 1

Answer:

They have 'found' a ball yesterday Write the parts of speech of the inverted word.

Answer 2

Answer:

Step-by-step explanation:

a+b = -5/1=-5

ab = -1/1=-1

(a+b)³ = a³+ b³ + 3ab(a+b)

(-5)³ = a³+b³ +3×(-1)×(-5)

-125 = a³+b³ +15

a³+b³ = -125-15 = -140

hope it will help u