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Find the values of x where x^(2) + 4x + 4 = 0

To solve this question we need to find the values of x which work for the equation x^(2) + 4x + 4 = 0. To solve the equation we can factorise the left-hand side into brackets which will m...

Answered by Ben A. • Maths tutor

7443 Views

What is the square root of the imaginary number i?

Let's suppose that (0+1i)^0.5= x+iy, where x and y are both real numbers. This is the most general form of a complex number. Now let's square both sides. This gives 0+1i = x²

Answered by George D. • MAT tutor

3350 Views

How can 'for' be translated correctly in French?

When translating for in French, we have to take into consideration the three prepositions which can be used: depuis, pendant and pour. The one which is selected depends on the sit...

Answered by Lauren C. • French tutor

1951 Views

How does Steinbeck represent attitudes to women through the character of Curley's wife?

Curley’s wife is the only major female character in ‘Of Mice and Men’, and as such, she represents all women in Steinbeck’s novella about the futility of the American Dream. Her lack of identity outside o...

Answered by Aisling S. • English tutor

6151 Views

Solve the simultaneous equations (1) 2x+3y=3 and (2) 3x+2y=7

Remember we can multiply both sides of an equation by the same thing without changing the meaning of the equation. Multiplying equation 1 by 2 gives 4x+6y=6 and multiplying equation 2 by 3 gives 9x+6y=21 ...

Answered by Zoe L. • Maths tutor

5365 Views