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X+√y=5√x+y=9find value of x & y? |
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Answer» Answer: Step-by-step explanation: ⇒√y=5-x ⇒y=(5-x)² √x+y=9 √x+(5-x)²=9 √x=9-(5-x)² √x= 9 -(25-10x+x²) √x= 9-25+10x-x² √x=-16+10x-x² Square both side x= 256+100x²+x^4+32x²-320x-20x³ x=x^4-20x³+32x²-320x+256 x^4-20x³+32x²-321x+256=0 Solve the equation to GET value of x |
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