Answer:
If P=7x square +25xy-9y square Q=45y square -13x square -6xy and R=-14x square +xy +54y square show that P+Q+R=0
Step-by-step explanation:
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Answer:
If P=7x square +25xy-9y square Q=45y square -13x square -6xy and R=-14x square +xy +54y square show that P+Q+R=0
Step-by-step explanation: