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Solve x^2+6x+1=0 by completing the square

x 2 +6x+5=0 First of all half the x coefficient and write (x+6/2) 2 the take away the (6/2) 2 and add on the 5 (x+3) 2 -9+5=0 (x+3) 2 -4=0 Simplify the expression (x+3) 2 =4 Move 4 to the other side of the e...
BS
Answered by Ben S. • Maths tutor
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Expand 4e(e + 2)

4e^2 + 8e
Answered by • Maths tutor
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Factorise and solve the quadratic : 3x^2 + 15x +18 = 0

First we look to see if there is a common factor in the equation. In this case there is a common factor of 3, therefore we can take 3 out as a factor. 3(x 2 +5x +6) = 0 The inside of the bracket is now a sta...
HW
Answered by Holly W. • Maths tutor
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Draw a carbon dioxide molecule and describe the bonding?

Covalent bond (sharing a pair of elections between two non metal atoms)O = C = O
KM
Answered by Krishna M. • Chemistry tutor
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How do I write essays about unseen poems?

A handy acronym to help you remember how to write about unseen poems is SLIME. This stands for Structure, Language, Imagery, Meaning, and Effect. When you read through the poem, you should make notes on part...
CF
Answered by Cait F. • English tutor
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