Question: Jing, Jun and Amira compare the methods they use to expand the bracket 5k(6m 8k). a What do you think about Jing, Jun and

Jing, Jun and Amira compare the methods they use to expand the bracket 5k(6m − 8k).

Jing uses the method shown in Question 3. 5k(6m-8k) = = 5kx6m-5kx8k

a What do you think about Jing, Jun and Amira’s methods?
b Which method do you think is best for expanding brackets correctly? Explain why.
c Use your favourite method to expand i 2x(x + 3y) ii 3y(5y + 6)
iii 4b(6b − 2a) iv 2f(2f + g − 3)

Jing uses the method shown in Question 3. 5k(6m-8k) = = 5kx6m-5kx8k = 30km - 40k Jun uses a multiplication Amira uses multiplication arcs. box. 6m -8k 5k 30km-40k So 5k(6m-8k) = 30km-40k 5k (6m 8k) 30km-40k? = So 5k(6m-8k) = 30km-40k

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Cambridge International AS & A Level Computer Science Questions!

Write the correct sign, , between each pair of numbers. a 4.23 4.54 C 0.27 0.03 b 6.71 6.03 d 27.9 27.85 e 8.55 8.508 f 5.055 5.505

What is the purpose of residual analysis?

Refer to the data for Novations, Inc., in Problem 5-47. Instructions: 1. Prepare an income statement for Novations, Inc., for the year ended December 31, 2011. 2. Prepare a statement of cash flows...

Encuentro la fuerza entre dos cargas de 1 x 10-9 Cy 2 x 10-9 C separadas por 1 metro. Indica si es de atraccion o repulsion si ambas son positivas. Dos cargas de q1 = 4 x 10-6 Cy q2 = 6 x 10-6 C...

A corporation with a 34% income tax rate is considering the following investment in research equipment and has projected the benefits as follows Before-Tax Year Cash Flow 0 -$50,000 1 +2,000 2 +8,000...