solve the simultaneous equations x^2 + y^2 = 5 and 3x+1=y

Substitute in y to the first equationx2 + (3x+1)2 = 510x2 + 6x - 4 = 55x2+3x-2=0(5x-2)(x+1)x=2/5 or -1Sub these values of x into the first equationy=11/5 and -2

Answered by Isabel D. Maths tutor


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