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Label the three coefficients (each number, including an invisible 1 in from of the x²) as a, b and c.Think of it in two parts: a multiplied by c, which is just -27 in this example.The second pa...

1 : 2x + y = 1 y = 1 - 2x2 : x^2 + (1-2x)^2 = 1 x^2 + (1-2x)(1-2x) = 1 x^2 + 1 - 2x - 2x + 4x^2 = 1 5x^2 - 4x + 1 = 1 5x^2 - 4x = 0 x(5x - 4) = 0 x = 0, x = 4/5 y = 1, y = -3/5

Recap, what is 'squaring a number'? Multiplying a number by itself, for example, 3 x 3 = 9. The question hasn't given us a specific number, hence that value can be any number, it is said to be a 'variable...

Make a quick plan to ensure that your essay has a clear structure. In this essay question, it is asking who won the Cuban Missile Crisis so it is important to consider all the participants in this event, ...

The imperfect tense is used to describe an action in the past that took place over a period of time such as "I was going" or "It was sunny". It is one of the simpler Spanish verbs to c...