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(Maths GCSE) Solve the simultaneous equations y = x + 3 and y = x^2 + 3x

Y = x + 3Y = x^2 + 3x x + 3 = x^2 + 3x3 = x^2 + 2xx^2 + 2x - 3 = 0(x+3)(x-1)=0x=-3 x+1

Answered by Kate A. • Psychology tutor

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