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= xy²+3xy²-xy²+3x²y-x²+5x²
= 3xy²+3x²y+4x²
b) 8x+x-5x=?
= 4x
semoga membantu :)
= xy² - xy² -x² + 5x² + 3x²y + 3xy²
= 4x² + 3x²y + 3xy²
b.) 8x + x - 5x
= 8x - 5x + x
= 3x + x
= 4x