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If the curve y=ax3+bx2+cx+5 touches the x−axis at A(−2,0) and cuts the y−axis at point B where its slope is 3, then the value of (2a−4b+c) is

Answer» If the curve y=ax3+bx2+cx+5 touches the xaxis at A(2,0) and cuts the yaxis at point B where its slope is 3, then the value of (2a4b+c) is


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