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4x square + 3x +5 solve this by using method of completing square |
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Answer» 4x²+3x+5=0X²+3/4x+5/4=0X²+3/4x+(3/8)²-(3/8)²+5/4=0X²+3/8-9/64+5/4=0X²+3/8=9/64-5/4X²+3/8=71/64X+3/8=±√71/8For positive....X+3/8=√71/8X=√71/8-3/8X=√71-3/8For negative....X+3/8=-√71/8X=-√71/8-3/8X=-√71-3/8 Hope u understand it....? Completing the squre method is removed by cbse nt to study (x+3/8)=+-√-28/32.....This is the answer I m getting ... |
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