Achieved

Expand and simplify

Question One

• a

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• c

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• d

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• f

Answers Question One

Question Two

• Factorise completely

Question Two

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Question Two

• e

Answers Question 2

Question Three

• Simplify

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Answers Question Three

Question 4

• Find the value of n.

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Answers Question Four

• A 5

• B 6

• C 5

Question 5

Question 5

Question Six

• a What number should replace x in the pattern:

Question Six

• B In a tile pattern the number of coloured tiles used is 3x, where x is the row number. Calculate the number of tiles that would be used in rows 4, 5 and 6 in the tile pattern.

Question Six

• c The formula P = I2R gives the amount of power (in Watts) that is lost through the electrical cable. I is the current in amps and R is the resistance in ohms. Resistance in wiring leading to an electrical oven can be 10 ohms. If the oven has a current of 15 amps how much power is lost through the cable?

Question Six

• d Ashton opens a savings account for University Study. He makes an initial deposit when opening the account and his parents deposit $120 each month. After 3 months there is $1000 in the account. How much did Ashton initially deposit when he opened the account?

Answers Question Six

• A 256• B 81, 243, 72 9• C 2250• D $640

Question Seven

• Solve the following equations:

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• k

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• l

Answers Question 7

Answers Question 7