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Factorise x^2+3x+4 without the use of quadratic formula

We use the form ax^2+bx+cTo factorise we need to put the equation into 2 bracketsThese 2 brackets will be in the form (x+k)(x+j) where k and j are to be foundWe need to find a combination of k and j for whic...
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Answered by William C. • Maths tutor
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Deberíamos legalizar el matrimonio homosexual?

We should begin this question first by introducing the concept, adding clarity and showing the marker that you understand the issues at hand. This is then followed by stating your view, using a subjunctive c...
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Answered by Noah T. • Spanish tutor
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Solve algebraically the simultaneous equations x^2 + y^2 = 25 and y - x = 1

Let's label the equations x 2 + y 2 = 25 (1) y - x = 1 (2). We can use substitution to solve this simultaneous equation. Let's make y the subject of the equation (2) and we get y = x + 1. Now, lets find y 2 ...
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Answered by Vithya N. • Maths tutor
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What are enjambement and caesura? Why are they important/what are their effects?

They are different techniques usually used in poetry. Enjambement is run-on lines, that is, lines that do not have punctuation at the end but flow on immediately to the next line. It links ideas together and...
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Answered by Maryann P. • English tutor
15229 Views

Solve 3x^2+7x-13=7 to find x.

Firstly, you need to get the equation to equal zero, so that you can use the quadratic formula to solve. Therefore you subtract 7 from both sides, meaning the equation becomes: 3x^2+7x-20=0. Recall the quadr...
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Answered by Ellie M. • Maths tutor
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