Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!

Answer:
10x^4 - 4x + 6
Explanation:
Just take the width of the rectangle and multiply each number by 2, including the exponent.
Answer & Step-by-step explanation:
We can solve this problem by multiplying the the expression by 2 one term at a time just like it is shown in the diagram. Your exponent will remain the same.
(5x² * 2) + (-2x * 2) + (3 * 2)
10x² - 4x + 6
So, once you multiply th terms togehter, your final answer will (10x²-4x+6)