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y = x^2 + 3x + 2 = 0


Factorising gives: y = (x+2)(x+1) = 0. y only equals 0 when (x+2)=0 or (x+1)=0. Therefore x=-2 or x=-1

DT
Answered by Dr Thomas P. Maths tutor
2327 Views

How can I make my personal statement stand out from everyone else's?

Personal statements are just that, personal. The admissions staff want to know about you, so don't be shy! Everyone has a different story to tell, and has experienced the world in a diffe...

BE
2293 Views

What is the difference between xylem and phloem?

Plants have both xylem and phloem.The xylem is a tube which runs from the very ends of the roots to all other parts of the plant. Xylem transport water and minerals around ...

BE
Answered by Britannie E. Biology tutor
4736 Views

Show how you would give all elements that have a class of 'class1', a green background.

.class1{ background-color: 'green'; } The full-stop before the text indicates that this css rule applies to a class with the name 'class1'.Inside the rule, the background-color attribute is given a value ...

JC
1734 Views

Suppose that you have a <p> element with an id of 'id1'. Use javascript to set the inner html of this element to 'hello!'

We will do this in 2 steps to make it easier to understand. Firstly, we need to obtain the actual <p> element with javascript. To do this, we use the following command:var p = document.getElementByI...

JC
Answered by Jamie C. Javascript tutor
1323 Views

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