Explain why each expression is or is not a perfect square trinomial. (1) x^2 + 6x + 12
(2) x^2 + 18x + 81
(3) x^2 + 15x + 25

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

yes because they have the same amount of green and blur marbles.

step-by-step explanation:

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step-by-step explanation: