The diagram shows triangle ABC. Angle Abc is NOT an obtuse angle. Find the greatest value of x. You must show all your working. Note:your finial line should say "the greatest value of x is..."
(3 Marks)

The largest possible value of x is 15.

Step-by-step explanation:

Given that the triangle is not obtuse, we know that the widest angle that the three values can add up to is 90 degrees.

We know that that angle is equal to:

30 + 3x + x

so to get a maximum, we can say that it equals 90 degrees and solve for x:

30 + 3x + x = 90

4x = 60

x = 15

So the largest possible value of x is 15.

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.

jwjeh; hw; kjhekjhkjhwkejhkw

step-by-step explanation: