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laiz [17]
3 years ago
9

Really need help!!! quadratic equations UGH

Mathematics
2 answers:
Mumz [18]3 years ago
5 0
2m³ + 10 m = 48

2m² + 10m - 48 = 0, solve this quadratic for m. Apply the formula:

m'=[-b + √(b²+4ac)]/2a and m" ==[-b - √(b²+4ac)]/2a

WHERE  a = 2, b=10, c= - 48
and you will find :
m=  3 and m= - 8 (answer a)
kati45 [8]3 years ago
4 0
2m^2 + 10m = 48\\
2m^2+10m-48=0\\
m^2+5m-24=0\\
m^2-3m+8m-24=0\\
m(m-3)+8(m-3)=0\\(m+8)(m-3)=0\\
m=-8 \vee m=3
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