Question

18. Multiply: (x-2y+3) by (x+2y)​

Answer 1

Answer:

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Step-by-step explanation:

(x−2y+3) by (x+2y)

= (x−2y+3)×(x+2y)

= x(x+2y)−2y(x+2y)+3(x+2y)

= x 2+2xy−2xy−4y 2+3x+6y

= x 2−4y 2+3x+6y

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Answer 2

Answer:

ur answer in attachment

Step-by-step explanation:

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