The value of c is:

7.2

52

104

None of these choices are correct

2 = c

Step-by-step explanation:

ABC is a right triangle and in right triangles the square value of hypotenuse (C in this case) is equal to sum of other two side's square length

4^2 + 6^2 = c^2

16 + 36 = c^2 add terms

52 = c^2 find the root for both sides

2 = c

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.

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