If a + b = 4 & a? + b2 = 40, what is the q.e. whose
roots are a & ß?
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igeiroorgoh be ogrgroggfigor
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Answer:
A=6²,B=2²
Step-by-step explanation:
In the first place, the examiner said: a + b =4
Therefore, roots are-√a + √b = √4
The root of four (4) is two (2)- values of a & b is [a=2,b=2]
So, a? + b² = 40(no power raised on a)
Therefore, we look for a? + b²=40(remember, b = 2)
a? +b² = 40(so, b + 2)
a? + 2² = 40(In 2², it is gonna be 2x2=4)
a? + 4 =40(collect like terms)
a? = 40-4
a? = 36(Then, think of what you can multiply to give you 36)
Now, we do square root =√a =√36
a = 36
Therefore, a = 36
b = 4(ans)
Step-by-step explanation:
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