Ok help it’s for a grade I will give Brainly if right
![Ok help its for a grade I will give Brainly if right class=](https://us-static.z-dn.net/files/de4/13def747dccd3442d63ea564a3a5ab80.png)
Answer: 15h^2 + 26h -21
Step-by-step explanation:
Use the foil method. Multiply in this order
First, 5h*3h= 15h^2
outer, 5h*7 = 35h
inner, -3*3h= -9h
last, -3*7= -21
Now add them all together
15h^2 + 35h + -9h + -21
Combine like terms
15h^2 + 26h -21