Use an area model to multiply (3x+7)(4x+5).
Fill in the blanks with the correct numbers.

Answer:
12^2 + 43x + 35
Step-by-step explanation:
(3x+7)(4x+5)
=(3x+7)(4x+5)
=(3x)(4x)+(3x)(5)+(7)(4x)+(7)(5)
=12x2+15x+28x+35
=12x2+43x+35