Answer:
<h2>-36</h2>
Step-by-step explanation:

Simplify by dividing the two by 14
The area of a parallelogram is equal to the base multiplied by the height. So in this instance it would be (3x+5)*(7x-1). Foil out the binomials. 21x^2+35x-3x-5 Combine like terms. 21x^2+32x-5
The area is 21x^2+32x-5
4.998370298991988e+137
Well, thats a large number.
Trust me, im a "prodigy"