2) Solve the equation using formulas
2x+5/3x+4=x+1/x+3 and give the answer in 2 significant figures
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Answer:
2x+5 x+1
=By =By
3x+4 x+3
2x+5+3x+4 x+1+x+3
=By =By [Addition process ]
3x+4-2x-5 x+1-x-3
5x+9 2x+4
=By =by
x-1 -2
= -10x-18=(2x+4)(x-1)
= -10x-18=2x^2+4x-2x-4
= -2x^2 - 10x -4x+2x -18+4=0
= -2x^2-12x-14=0
= -2(x^2+6x+7)=0
= x^2+6x+7=0
= x^2+(7-1)x+7=0
= x^2+7x-x+7=0
= x(x+7)-1(x-7)=0
= (x+7)(x-1)=0
is, and,
x+7=0 x-1=0
=x=-7 =x=1
ans= x= -7, 1
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