Question

Find the value of (x² - 1) /3 if x =-5​

Answer 1

Step-by-step explanation:

X = 5

put the value of X

5×5-1÷3

25-1 ÷ 3

24÷3

= 8

Answer 2

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Answer:

★$\huge{\boxed{\red{\rm{x=8}}}}$★

Step-by-step explanation:

Put x = -5 in the expression.

$\Rightarrow\displaystyle{\rm{ \frac{(-5)^{2} - 1}{3}}}$

$\Rightarrow\displaystyle{\rm{ \frac{(25)- 1}{3}}}$

$\Rightarrow\displaystyle{\rm{ \frac{24}{3} = 8}}$

Hence, the value of the equation is 8.

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