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Expand and simplify (x − 4)(2x + 3y)^2

Answer: 4x3 + 12x2y + 9xy2 - 16x2 - 48xy - 36y2

DH
Answered by Daisy H. Maths tutor
3977 Views

How can I improve the structure of my essay?

Illustrate to the student the advantages of using thematic essay structures whilst equally showing the limitations of using chronological structures. Reference the specific mark scheme the student is usin...

BM
Answered by Ben M. History tutor
2089 Views

Solve the following simultaneous equations: y-3x+2=0, y^2-x-6x^2=0

(1) y-3x+2=0
(2) y2-x-6x2=0
Using (1): y=3x-2
Sub y value into (2): (3x-2)2-x-6x2=0
Expand the brackets: 9x2-13x+4-x-6x

PA
Answered by Phoebe A. Maths tutor
8038 Views

Why is the demand curve downward sloping?

So this may seem a bit odd at first - like why is it the the more of something there is, the less it costs to buy? But it actually makes a lot of sense when we break down the law of demand. The law of dem...

GP
Answered by George P. Economics tutor
2813 Views

Describe the structure of the heart and its function in the human circulatory system.

The heart is a muscular organ composed of 4 chambers; the left atrium and right atrium (pl. atria) and the left ventricle and right...

AO
Answered by Aine O. Biology tutor
17980 Views

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