Respuesta :
Answer:
14x² - 21
Step-by-step explanation:
given for a rectangle,
height = 7
width = 2x² - 3
Area = height x width
= 7 (2x² - 3)
= (2x²) (7) - 3 (7)
= 14x² - 21
Answer: 14x² - 21
Step-by-step explanation: Just trust me i promise u its the answer and besides your probably doing khan academy right now.