Question

the product of 2xy, 3x^2 and 7x^4​

Answer 1

Answer:

product of (7x−4y) and (3x−7y)

(7x−4y) (3x−7y)

⇒(7x)(3x)−(7x)(7y)−(4y)(3x)+(4y)(7y)

⇒21x

2

−49xy−12xy+28y

2

⇒21x

2

+28y

2

−61xy

Step-by-step explanation:

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Answer 2

Answer:

A student practices 35 minutes per day for the competition of their school. If he practiced for 12 days, then how many hours did he practice in total?