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Find the roots of the folloof the following square equations by factor(ii) 4x+ +5(iv) Sx²+(vi) 4830(1) 9x² – 3x - 2 = 0(iii) 3x? - 11x + 10 = 0(v) 6x² + 7x+2 = 0(vii) 10x - 7= 3abx +(b? - ac)x - bc = 0x+1 X-1 5x #1,-1x-1 x +1---ő |
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Answer» 9x^2-3x-2=0(3x)^2-2(3x)(1/2)+(1/2)^2 -2-1 /4=0(3x-1/2)^2=9/43x-1/2=+-√9/4= +-3/23x=+3/2+1=5/2x=+5/6or 3x-1= -3/23x=1-3/2= -1/2x= -1/6 |
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