If a(x) = 2x - 4 and b(x) = x + 2, which of the following expressions produces a quadratic function? (ab)(x)
(a/b)(x)
(a - b)(x)
(a + b)(x)

(a-b)(x)

(a+b)(x)

Step-by-step explanation:

Technically those 2 answers will give you a quadratic function. Whether you subtract or add a(x) and b(x), when you multiply x into both, you will get a quadratic (both equations will have highest degree of 2)

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3