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Find the roots of x^2+5x+4=0
(x+4)(x+1)=0
x=-1 x=-4
CD
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Solve these simultaneous equations: 2x + y = 7, and 3x - y = 8. Do so by 1) Eliminating an Unknown and 2) Substitution.
make a the subject of p = (3a+5)/(4-a)
Make x the subject of the equation y=(3x+5)/(4-x)
Expand and simplify 3(m + 4) – 2(4m + 1)
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