Question

Please solve this. I will mark the best answer as brainliest.


4. Simplify + + − by combining the like terms and then write whether the expression is a monomial, a binomial or a trinomial.



5. To what expression must 99x3 -33x2 -13x-41 be added to make the sum zero?



6. Simplify − [ + { − ( − ) − ( − )}]

7. Subtract − +
− + − − +



8. A wire is (7x-3) metres long. A length of (3x—4) metres is cut for use,
answer the following questions :

(a) How much wire is left?

(b) If this left out wire is used for making an equilateral triangle. What is the
length of each side of the triangle so formed?


9. Find the product of


×


×





10. Multiply : ( − + ) ( + )


11. Find the product of ( + − ) . Also find the value of the result
obtained when = − = .

Answer 1

4 answer is monomial.

because if we Plus to monomial then we will get a monomial term and we will subtract one monomial by second we will get monomial answer only

5 it's very easy its equation will be

297-66-(-533)

it will be -302 now if we add 302

then its answer will become zero

6 from the smallest bracket we get minus minus that's Plus by solving middle bracket we get minus minus plus and plus plus plus solving outest bracket we will get plus plus plus show so we we get answer as Plusfrom

7 it answer will be - + that will be - now minus plus that will be minus now minus minus that will be Plus now plus plus that will be Plus now plus minus that will be minus and minus minus that will be + at last plus plus that will be Plus so answer will be Plus

8.A. so

7X-3.

3x-4

by changing sign we get

7x-3

-3x+4

4x-1

I I think it will help you

please mark it as brain list answer