Scan QR code or get instant email to install app
Question:
The expression 2y(x + z) + 4xz can be simplified before we substitute the values of the variables x, y and z. We first need to multiply 2y and (x + z).
Step 1: Remove the brackets.
\(2y(x + z) + 4xz = 2xy + 2yz + 4xz\)
Step 2: Substitute the values x = 3, y = 5 and z = 1.
\(2xy + 2yz + 4xz = 2*3*5 + 2*5*1 + 4*3*1\)
Step 3: Perform the multiplication.
\(2*3*5 + 2*5*1 + 4*3*1 = 30 + 10 + 12\)
Step 4: Find the sum.
\(30 + 10 + 12 = 52\)
Comments
Emstilyy
4 years ago
The ads can be annoying but it’s a free app with tons of questions that test you until you learn the topic so you actually retain the info
Emstilyy
4 years ago
The ads can be annoying but it’s a free app with tons of questions that test you until you learn the topic so you actually retain the info
kaitlynichole
4 years ago
This is really helpful and I like how it explains the solution especially in mathematics. All features are there, there are just ads. I don’t mind this as long as I can still get all of the learning content. Great study tool!