Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

Login

Username

Password

Not registered yet?

#1 2007-12-30 02:13:17

ganesh
Moderator

Online

Middle School Mathematics - VI

1. Simplify:

(a)



(b)


(c)


(d)


(e) 3xyz(x+y+z)   

(f) (x+y)(2x-3y)

(g) (3x+y)(x+3y)

(h) (x+2y+z)(x-y)

2. Expand the following using formulas:-

(a) (3x+2y)

(b) (2x-3y)

(c) (2x-3y)(2x+3y)

(d) (4x-y)(4x+y)

3. Multiply the following:-

(a) (x+2y)(2x+y)    (b) (2x+y)(2x-y+7)   (c) (3x-y)(7-3x-y)

4. If a=2, b=3, find the value of 4a-12ab+9b.

5. Without actual multiplication, find the value of:

(a) 99-97   (b) 95 x 105   (c) 52   (d) 47

6. If
,
find the value of


Character is who you are when no one is looking.
 

Board footer

Powered by FluxBB