plez help me in solving this question its urgent
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marks of maths be x
marks of science be y
x+y = 28
y = 28-x
(x+3)(y-4) = 180
(x+3)( 24-x) = 180
x^2-21x-72
x^2-24x+3x-72
x(x-24)+3(x-24)
so, x = 24 and -3
marks of science be y
x+y = 28
y = 28-x
(x+3)(y-4) = 180
(x+3)( 24-x) = 180
x^2-21x-72
x^2-24x+3x-72
x(x-24)+3(x-24)
so, x = 24 and -3
purvisri02:
thanks
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