Given that −3 and m are the roots of the quadratic equation
^2 + 5 − 3 = 0. Find the values of m and k.
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Given that −3 and m are the roots of the quadratic equation
^2 + 5 − 3 = 0. Find the values of m and k.
x
2
−5x+3=0
a=1,b=−5,c=3
m+n=
a
−b
=
1
−(−5)
=5
m+n=
a
c
=
1
3
=3
i) (m+n)
2
+(m−n)
2
=(m+n)
2
+[(m+n)
2
−4mn]
=5
2
+5
2
−4(3)
=25+25−12
=50−12
=38
ii) (m+n)
3
+4mn=(5)
3
+4(3)
=125+12
=137.
Answered by
1
HYY DEAR
THIS IS YOUR ANSWER
Given that −3 and m are the roots of the quadratic equation
^2 + 5 − 3 = 0. Find the values of m and k.
x
2
−5x+3=0
a=1,b=−5,c=3
m+n=
a
−b
=
1
−(−5)
=5
m+n=
a
c
=
1
3
=3
i) (m+n)
2
+(m−n)
2
=(m+n)
2
+[(m+n)
2
−4mn]
=5
2
+5
2
−4(3)
=25+25−12
=50−12
=38
ii) (m+n)
3
+4mn=(5)
3
+4(3)
=125+12
=137.
THANKS MY ANSWERE
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