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Expand the brackets? (x+4)(2x-3)

Create a smiling face with arrows between the terms and then go through and multiply the terms together.(Diagram of the smiling face)(x+4)(2x-3) = 2x² - 12 - 3x + 8x = 2x²+ 5x - 12T...

Answered by Tim R. • Maths tutor

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How do I construct a 'si' clause?

'Si' means 'if' in French. Like in English, it is used to talk about things that could happen. This is a 'si' clause in English: 'If I was rich, I would buy loads of book...

Answered by Elliot K. • French tutor

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Solve: 3x+5y=19 4x-2y=-18

These are simultaneous equations and we need to find the value of X and Y. We can use the elimination method. The coefficients (the amount the letter is being multiplied by) of X and Y do not match. First...

Answered by Charlotte L. • Maths tutor

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Pathogens are disease-causing organisms which can infect humans. Bacteria and viruses are two examples of pathogens. Explain the differences between bacteria and pathogens and give an example of each.

Bacteria:Contain naked DNAHave a cell wall, membrane and organelles - RibosomesAre cellsLarger than virusesCan survive without living ho...

Answered by Tabitha G. • Biology tutor

2585 Views

13/2 - 5/3 = ?

Change both the denominators to 6...Times 13/2 by 3 to get 39/6Times 5/3 by 2 to get 10/6
Then its 39/6 - 10/6 and then look at the numerator and work out 39-10 = 29The answer is therefore 29/6

Answered by Patsy B. • Maths tutor

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