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1 vote
1 vote
What is the value of x in the equation shown below?
(x to the power of 3) x^3 + 1 = 9

User AliNajafZadeh
by
2.8k points

2 Answers

14 votes
14 votes
X=2 explanation:because 2 to the power of 3 is 8 and then you add 1 which is 9
User Str
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2.3k points
15 votes
15 votes


\huge\textsf{Hey there!}


\mathsf{x^3 + 1 = 9}


\large\textsf{SUBTRACT 1 to BOTH SIDES}


\mathsf{x^3 + 1 - 1 = 9 - 1}


\large\textsf{CANCEL out: 1 - 1 because it gives you 0}


\large\textsf{KEEP: 9 - 1 because it helps solve for x}


\mathsf{9 - 1 = \boxed{\large\textsf{\bf 8}}}


\large\textsf{NEW EQUATION: }\mathsf{x^3 = 8}


\large\textsf{TAKE the CUBE ROOT from the numbers}


\mathsf{x = 8}^\mathsf{{(1)/(3)}}


\large\textsf{SIMPLIFY ABOVE and YOU HAVE YOUR ANSWER}


\boxed{\boxed{\large\textsf{Answer: \huge \bf x = 2}}}\huge\checkmark


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

~
\frak{Amphitrite1040:)}

User Madars Vi
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3.3k points