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1 vote
8. 2x² + 3x + 5 simplify​

2 Answers

3 votes

x = 1 and -5

Explanation:


{ \blue{ \sf{2 {x}^(2) + 3x + 5}}}


{ \blue{ \sf{2 {x}^(2) + 5x - 2x + 5}}}


{ \blue{ \tt{2x(x + 5) - 2(x + 5)}}}


{ \blue{ \sf{(2x - 2)}}} \: \: \: \: \: \: \: || \: \: \: \: \: { \blue{ \sf{(x + 5)}}}


{ \blue{ \sf{2x - 2 = 0}}} \: \: || \: \: { \blue{ \sf{x + 5 = 0}}}


{ \blue{ \sf{2x = 2 }}} \: \: \: \: \: \: \: \: \: || \: \: \: \: \: \: \: { \blue{ \boxed{ \red{ \sf{x = - 5}}}}}


{ \blue{ \sf{ ( \cancel2)/( \cancel2)x = \frac{ \cancel2} { \cancel2}}}}


{ \blue{ \boxed{ \red{ \sf{x = 1}}}}}

User Ichsan
by
4.3k points
5 votes

Explanation:


{ \green{ \tt{ 2{x}^(2) + 3x + 5}}}


{ \green{ \tt{2{x}^(2) + 5x - 2x + 5}}}


{ \green{ \tt{2x(x + 5) - 2(x + 5)}}}


{ \green{ \tt{(2x - 2) \: \: \: \: { \green{ \tt{(x + 5)}}}}}}


{ \green{ \tt{2x - 2 = 0}}} \: \: \: | | \: \: \: { \green{ \tt{x + 5 = 0}}}


{ \green{ \tt{x = 1}}} \: \: || \: \: { \green{ \tt{x = - 5}}}

User Varma Mukesh
by
4.5k points