Add this equation 3m²+4mn-5n²,-m²+2n²-6mn and 3mn-n²and 3m²+4n²-mn
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Answer:
The quadratic formula for the standard Quadratic equation of the form :
ax
2
+bx+c=0 is :
x=
2a
−b±
b
2
−4ac
Now Comparing the given equation 3m
2
+2m−7=0 to the standard form we get:
a=3,
b=2 and
c=−7
Substituting value of a,b and c in the quadratic formula we get:
x=
2×3
−2±
2
2
−4×3×(−7)
⇒x=
6
−2±
88
⇒x=
2×3
2×(−1±
22
)
∴ x=
2
(−1+
22
)
or x=
2
(−1−
22
)
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