Marcus finds that (3x2-2y2+5x)+(4x2+12y2-7x)=7x2-10y2 -2x. what error did marcus make? he combined the terms 5x and –7x incorrectly. he combined the terms 3x2 and 4x2 incorrectly. he combined the terms –2y2 and 12y2 incorrectly. he subtracted the polynomials instead of adding.

Following are the solution to the given expression:

Given:

To find:

Solve equation=?

Solution:

Solving the L.H.S part:

Solving the R.H.S part:

Since in this question the , and when we solve the equation so, except the third choice all were correct.

Therefore, the final answer is " He combined the terms incorrectly."

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Given : (3x² - 2y² + 5x) + (4x² + 12y² - 7x)

Rearranging like terms, we get :

⇒ (3x² + 4x²) + (12y² - 2y²) - 7x + 5x

⇒ 7x² + 10y² - 2x

But, Marcus got the Answer as : 7x² - 10y² - 2x

Marcus combined the terms -2y² and 12y² Incorrectly

the most boring thing ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.

40 x 50 = 2000

step-by-step explanation: