Maths-
General
Easy

Question

What must be added to 5y2+3y + 1 to get 3y3 -7y2+8

hintHint:

Addition of polynomials.
○        Always take like terms together while performing addition.
○        In addition to polynomials only terms with the same coefficient are added.

The correct answer is: Hence, the other term must add is 3y3 - 12y2 - 3y + 7.


    Answer:
    • Step by step explanation:
    ○        Given:
    Terms:

                                 5y2+3y + 1

                                 3y3 -7y2+8
    ○        Step 1:
    ○        Let A must be added to 5y2+3y + 1 to get 3y3 -7y2+8.
    So,

                                rightwards double arrowA + 5y2+ 3y + 1 =3y3 -7y2+8

                                rightwards double arrow A = (3y3 -7y2+8) - (5y2 + 3y + 1)

                                rightwards double arrowA = 3y3 - 7y2 + 8 - 5y2 - 3y - 1

                                rightwards double arrow A = 3y3 - 7y2 - 5y2 - 3y + 8 - 1

                                rightwards double arrowA = 3y3 - 12y2 - 3y + 7

    • Final Answer:
    Hence, the other term must add is 3y3 - 12y2 - 3y + 7.

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