Add:

6p + 4q – r + 3, 2r - 5p – 6, 11q - 7p + 2r – 1 and 2q – 3r + 4

Subtract:

5a²b²c² from -7a²b²c²

Take away:

(i)

(ii)

(iii)

(iv)

(v)

Subtract 3x-4y-7z from the sum of x-3y+2z and -4x+9y-11z. 

Subtract:

–2abc from –8abc

Subtract:

–16p from –11 p

Add:

6ax – 2by + 3cz, 6by -11ax – cz and 10 cz -2ax – 3by

Subtract:

(i) -5xy from 12xy

(ii) 2a² from -7a²

(iii) 2a-b from 3a-5b

(iv)

(v)

(vi)

(vii) x² - xy² + xy from x²y + xy² - xy

(viii)

If we subtract -3x²y² from x²y², then we get

Add:

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

State whether the statements are true (T) or false (F).

The difference of the squares of two consecutive numbers is their sum.