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Expand (x+3)(x+6)

Step 1 Using the crab methodLooking at the first bracket:Multiply x by x to give x²Then multiply x by 6 to give 6xThen move onto 3 Multiply 3 by x to give 3xThen multiply 3 by 6 to give 18 Add ...

Answered by Alexandra B. • Maths tutor

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Show that (x + 1)(x + 2)(x + 3) can be written in the form ax3 + bx2 + cx + d where a, b, c and d are positive integers.

(x²+3x+2)(x+3) = x³+3x²+3x²+9x+2x+6 = x³+6x²+9x+2x

Answered by Rocio C. • Maths tutor

3278 Views

Write 7.264 51 correct to 3 decimal places.

7.265

Answered by Rocio C. • Maths tutor

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What is the difference between the preterite and the imperfect tense?

Firstly, I will explain the theoretical concept of both tenses to the student. In this case, both tenses place the action in the past, but the meaning of both tenses is radically different. On the one han...

Answered by Erik A. • Spanish tutor

2700 Views

'The assassination of Archduke Franz Ferdinand was the main cause of World War One'. To what extent do you agree?

Unpack the QuestionWar = caused by the assassination. Implies other possible causes; what are they?If we agree, why is it a more important cause than others.
Causes...

Answered by Callum E. • History tutor

3705 Views