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#1 2006-09-30 13:23:23

justlookingforthemoment
Moderator
Registered: 2005-05-26
Posts: 2,161

Perfect square rule

Perfect square rule

Expand the following using the 'perfect square rule'.

1. (x + 4)²
2. (x + 1)²
3. (x - 5)²
4. (x - ½)²
5. (6 - x)²
6. (3x + 5)²
7. (2y + 10)²
8. (7x - 2)²
9. (4y - 3)(4y - 3)
10. (9x + 8)(9x + 8)

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#2 2006-10-03 03:11:44

Kurre
Member
Registered: 2006-07-18
Posts: 280

Re: Perfect square rule

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#3 2006-10-26 14:40:22

creative1301
Member
Registered: 2006-10-26
Posts: 1

Re: Perfect square rule

x2+8x+16
x2+2x+1
x2-10x+25
x2-x+1/4
36-12x+x2
9x2+30x+25
4y2+40y+100
49x2-28x+4
16y2-24y+9
81x2+144x+64

i did it in 1 min 12 secs. smile


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