5.1 Simplify jko

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 3

Chapter 5 Algebraic skills

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You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy. 

You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy.

Prior Knowledge:  Simplifying

a(b + c) = ab + ac

(a + b)(c + d) = ac + ad + bc + bd

(ab)​2​​=a​2​​⋅b​2​​

Simplify

1. a​2​​+49
2. a​2​​−14a
3. a​2​​
4. a​2​​+14a+49

Square Roots

Simplify. Upload a picture of your workings

Simplify :Upload a picture

(x+y)​2​​(x−y)

(x+y)​2​​(x−y)

(x+y)​2​​(x−y)

x​2​​+2xy+y​2​​

(x−y)

(x+y)​2​​(x−y)

x​2​​+2xy+y​2​​

(x−y)

x​3​​+2x​2​​y+xy​2​​

(x+y)​2​​(x−y)

x​2​​+2xy+y​2​​

(x−y)

x​3​​+2x​2​​y+xy​2​​

−yx​2​​−2xy​2​​−y​3​​

(x+y)​2​​(x−y)

x​2​​+2xy+y​2​​

(x−y)

x​3​​+2x​2​​y+xy​2​​

−yx​2​​−2xy​2​​−y​3​​

x​3​​−y​3​​+2x​2​​y−x​2​​y−2xy​2​​+xy​2​​

(x+y)​2​​(x−y)

x​2​​+2xy+y​2​​

(x−y)

x​3​​+2x​2​​y+xy​2​​

−yx​2​​−2xy​2​​−y​3​​

x​3​​−y​3​​+2x​2​​y−x​2​​y−2xy​2​​+xy​2​​

x​3​​−y​3​​+x​2​​y−xy​2​​

Chapter 5 Algebraic skills

Homework next lesson: Chapter 5 :1-10 

Try to solve this riddle while we're waiting for evryone to join. 

You measure my life in hours and I serve you by expiring. I’m quick when I’m thin and slow when I’m fat. The wind is my enemy.