Find the value of x.

help please !

33

Step-by-step explanation:

The sum of the three interior angles in a triangle is ALWAYS equivalent to 180 degrees.

69 + 78 = 147

180 - 147 = 33

Hope this is helpful & accurate! Best wishes.

x-2

Step-by-step explanation:

The easiest way to solve this is to look at the options and check the possible option with which when multiplied by the factor in the question gives the polynomial.

The other proper way is the long division method.

I will be selecting the first option for a test;

So we have;

(3x-4)(x-2) = 3x^2-6x-4x + 8 = 3x^2 -10x + 8

This makes the first option correct