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What are the solutions to the equation?

x2 + 6x = 40
x= -10 and x = 4
x=-8 and x = 5
x= -5 and x = 8
x= -4 and x = 10

User Mmix
by
4.8k points

2 Answers

6 votes

Answer: A. x = -10 and x = 4.

Step-by-step explanation: Answer is correct on Edge. :)

What are the solutions to the equation? x2 + 6x = 40 x= -10 and x = 4 x=-8 and x = 5 x-example-1
User Will Iverson
by
5.0k points
4 votes


\text{Hey there!}


\mathsf{x^2+6x=40}\\\mathsf{SUBTRACT\ 40\ on\ your\ sides}\\\mathsf{x^2+6x-40=40-40}\\\mathsf{CANCEL\ out: 40-40\ because\ it\ gives\ you\ 0}\\\mathsf{New\ equation: x^2+6x-40=0}\\\mathsfFACTO\


\mathsf{(x-4)=0}\\\mathsf{(x+10)=0}\\\mathsf{=(x-4)(x+10)=0}\\\mathsf{ANSWER\ those\ above\ and\ you\ will\ find\ your\ x-values}\\\\\\\boxed{\boxed{\mathsf{This\ your\ answer\ is: \boxed{\mathsf{\bf{x=4\ and\ x=}-10}}}}}\checkmark


\text{Good luck on your assignment and enjoy your day!}

~
\frac{\frak{LoveYourselfFirst}}{:)}

User MelkorNemesis
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5.4k points