Answer:
3x+2
Step-by-step explanation:
9x^2 + 12x +4
This is a perfect square trinomal
(3x)^2 + 12x +2^2 = 3x*2 doubled = 6x*2 = 12x
The middle term is twice the ends
a^2 +2ab+b^2 = (a+b)^2
(3x)^2 + 12x +2^2 = (3x+2) ^2
i think i am not sure
i am soo sorry if i gave it wrong but i think its A
The answer to the question
Answer:4
Area = 168m^2
Area of triangle = 1/2×base×height
Area = 1/2bh
= 1/2(8+16)(14)
= 168m^2
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= 6 × 81 = 486 
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