Solve 5m+2×5m+1 = 5⁹
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Answer:
Hi ,
m² + 5m + 5 = 0
m² + 5m = -5
m² + 2 × m × 5/2 = - 5
m² + 2 × m × 5/2 + ( 5/2 )² = ( 5/2 )² - 5
( m + 5/2 )² = 25/4 - 5
( m + 5/2 )² = ( 25 - 20 )/4
( m + 5/2 ) = ± √(5/4)
m + 5/2 = ± √5/2
m = - 5/2 ± √5/2
m = ( - 5 ± √5 )/2
I hope this helps you.
: )
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