SYMBOL PLEASS HELP I TRYED AND I DIDNT GET IT RIGHT
explain how to do it please

1/n^3

Step-by-step explanation:

When there is a negative exponent, it gets flipped (in form of a fraction). Like this one. Imagine there is a 1 in the denominator, the n^-3 would go to the denominator and change to a positive exponent. and vice versa.

neither i nor ii 56 / 4.9 = 11.91489362 and 82 / (11+5) =5.125 so i is wrong

ii. (24/8+2) times 3 = 15 and (42+9)/2 =25.5

step-by-step explanation:

56

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.