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Solve the equation x^2 + 3x - 10 = 0

Identify a, b and c based in the GENERAL FORM OF A QUADRATIC EQUATION: ax 2 + bx + c (= 0) ax 2 + bx + c = 0 x 2 + 3x - 10 = 0, so a = 1, b = 3 and c = -10 Rule 1: List factors of c in pairs [Factors of 10 a...
EA
Answered by Emmanuel A. • Maths tutor
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Discuss the application of the inverted U hypothesis and drive theory to achieve optimum performance

Drive theory shows that there is a linear relationship between arousal and sporting performance. (AO1) As arousal increases dominant habit occurs – elite performer error free / novice performer error strewn....
GM
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Was Nazi support in the years 1930 - 32 a reaction to the growth of Communism?

Following the economic instability fostered by the 1929 Wall Street Crash, support for the Communist Party of Germany (the KPD) did increase. In the 1930 federal elections for example the KPD polled 4.5 mill...
OC
Answered by Oliver C. • History tutor
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Solve the simultaneous equations xy=2 and y=3x+5.

x=1/3 and y=6 or x=-2 and y=-1
SS
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Solve the equation 2X^2 + 5X + 2 = 0 stating clearly the number of roots

Firstly, we can identify 2X 2 + 5X + 2 = 0 as a quadratic equation by the fact it is an X 2 term, an X term and an integer term all within the same equation, and is equal to zero. To solve a quadratic equati...
LP
Answered by Luke P. • Maths tutor
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