Solve by completing the square: x^2 + 12x + 4 = 0

(x+6)^2-36+4=0(x+6)^2-32=0(x+6)^2=32(x+6)=±√32x=-6±√32

EK

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(Q20 Non-Calculator paper, Higher Tier) Solve algebraically the simultaneous equations: x^2 + y^2 = 25 and y – 3x = 13


Solve 14-x = 4(1+x)


What is 17 multiplied by 120?


Simplyfy, ((x-2)(x^2+5x+6)-(2x^2+10x+12))/(x^2+x-2)