Complete the product: 5x^3(7x-1)

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Write an expression for the Product of (x+5)(x-3)

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Any help would be appreciated, if you can only answer one thats fine with me.

There are 14 cows and 68 Chicken in the farm.

Step-by-step explanation:

A Cow has 4 legs

Chicken has 2 legs.

Lets take there chickens AND,

there are number of Cows.

Now we can write two equations for the number of heads and legs.

For the number of heads we can write,

<--------- 1st equation

For the number of legs we can write,

<------ 2nd equation

We can now solve the simultaneous equations to find and

Multiply 1st equation by 2 and deduct it from 2nd equation to remove

⇒

⇒

⇒

⇒

Therefore, there are 14 cows in the farm.

Now we can substitute the value to the 1st equation and find value.

Therefore, there are 68 chickens in the farm.