3comdemetri is making a seafood salad for his dinner party. trickiera) he puts prawns and crab sticks into the seafood salad in the ratio of 9 : 5.there are 72 prawns in the salad, how many crab sticks are there? b) a guest at the party eats 8 prawns and 8 crab sticks from the salad. what is the ratio of prawns to crab sticks in the remaining salad? fully simplify your answe

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.

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.