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What is the answer of these addition of algebraic expression?

-3/4x^a+1-1/2x^a+1+7/8x^a+1 (a+1 is an exponents)

6x²-4y²; -4xy+7y²-4x²; 5x²-7xy; 7x²+5xy-9y²

3x^4-5x²+4; 6x^4-6x²+1; 2x^4-7x² (^4 is an exponent)

3x²+2x-4; -4x²+5; 2x²-5x

hope you can give me an answer for these..thank you..

2
by melodyandoyo

and please show me the solution..thank you

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