(x+2)(x+6)=0

in the problem shown, to conclude that x + 2 = 0 or x + 6 = 0, one must use the

multiplication property
division property
zero product property
transitive property

  zero product property

Step-by-step explanation:

The zero product property tells you that when a product is zero, one or more of the factors is zero (and vice versa).

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'.

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step-by-step explanation: