solve HJ
okk i posted it
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5m²=22m+15,
5m²-22m-15=0,
5m²-(25-3)m-15=0,
5m²-25m+3m-15=0,
5m(m-5)+3(m-5)=0,
(m-5)(5m+3)=0,
if
m-5=0,
m=5,
if
5m+3=0,
then
m=-3/5
5m²-22m-15=0,
5m²-(25-3)m-15=0,
5m²-25m+3m-15=0,
5m(m-5)+3(m-5)=0,
(m-5)(5m+3)=0,
if
m-5=0,
m=5,
if
5m+3=0,
then
m=-3/5
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