multiply (2/5y ^2+3z ^2) & 5 (x^2 - 3 /5y ^2)
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Step-by-step explanation:
Eq 1 - 3x + 5y = 9
Eq 2 - 5x + 3y = 7
if you add both equations both LHS and RHS, you will get following equation:
8x + 8y = 16
8(x + y) = 16
Which gives x + y = 2.
anvesha91:
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but i can't understand and the answer is also wrong the answer is 2x^2y^2-6/5y^4+15x^2z^2-9y^2z^2
But use this process
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