Answer:
the answer is A
Explanation:
all you gotta do is (4x+3)(4x+3)
(4x)(4x)+(4x)(3)+(3)(4x)+(3)(3)
16x[2] + 12x+12x+9
and that equals 16x[2] +24x=9
the third one
(4x+3)(4x+3)
=(4x)(4x)+(4x)(3)+(3)(4x)+(3)(3)
=16+12x+12x+9
=16+24x+9
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