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A Math question , please help

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find the sums and products of the roots of this equation1) 2t^2 -5 = 02) 3p^2 +7p=03) kx^2 -2x+1 =0On separate diagrams ,sketch the graph of (a) y= |x-2|(b) y=|x|+2find the value of A and B in each of the following identities(a) A(9x-3)(x+1)+B(x-3)=7x^2 -17x-12(b) 3x^3+5x^2+13x+1 =... 顯示更多 find the sums and products of the roots of this equation 1) 2t^2 -5 = 0 2) 3p^2 +7p=0 3) kx^2 -2x+1 =0 On separate diagrams ,sketch the graph of (a) y= |x-2| (b) y=|x|+2 find the value of A and B in each of the following identities (a) A(9x-3)(x+1)+B(x-3)=7x^2 -17x-12 (b) 3x^3+5x^2+13x+1 = (3x-1)(x^2+2x+A)+B

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其他解答:

這裏可以幫到你 http://yahootwiaii.hbw3c.com/yahoo.com.hk/hk/auction/178987536|||||1) 2t^2 -5 = 0 Sum of roots = -0/2 = 0 Product of roots = -5/2 2) 3p^2 +7p=0 Sum of roots = -7/3 Product of roots = 0/3 = 0 3) kx^2 -2x+1 =0 Sum of roots = 2/k Product of roots = 1/k
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