Subtract 3xy + 5yz − 7zx from 5xy − 2yz − 2zx + 10xyz.

Sum

The given expressions are in separate rows, with like terms one below the other, and then the subtraction of these expressions is as follows:

5xy – 2yz – 2zx + 10xyz
3xy + 5yz – 7zx
(–) (–) (+)
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2xy – 7yz + 5zx + 10xyz

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Subtract: - 5y² from y²

Subtract: 5a² - 7ab + 5b² from 3ab - 2a² -2b²

Add: 8x, 3x

Find the sum of the following expressions

7p + 6q, 5p – q, q + 16p

Simplify: p + p + 2 + p + 3 + p – 4 – p – 5 + p + 10

Add:

3a(2b + 5c), 3c(2a + 2b)

Sum of 2 and p is 2p.

Add the following expressions:

`5/8p^4 + 2p^2 + 5/8; 1/8 - 17p + 9/8p^2` and `p^5 - p^3 + 7`

Add the following expressions:

t – t² – t³ – 14; 15t³ + 13 + 9t – 8t²; 12t² – 19 – 24t and 4t – 9t² + 19t³

Each symbol given below represents an algebraic expression:

= 2x² + 3y, = 5x² + 3x, = 8y² – 3x² + 2x + 3y

The symbols are then represented in the expression:

Find the expression which is represented by the above symbols.