Question

If you have (100³-5x+3) pesos in your wallet and you spent (80x³-2x²+9)pesos in buying foods,how much money is left in your pocket?

Answer 1

Answer:

The answer above me that answered this question might be wrong because the answer is not on the choices

Step-by-step explanation:

His answer is not on my choices, please tell me the real answer

Answer 2

Step-by-step explanation:

Correct question: If you have (100x³-5x+3) pesos in your wallet and you spent (80x³-2x²+9)pesos in buying foods,how much money is left in your pocket?

To find: How much money is left in your pocket?

Solution:

Money I have: $(100 {x}^{3} - 5x + 3 )\: pesos ...eq1$

Money I have spent :$(80 {x}^{3} - 2 {x}^{2} + 9) \: pesos ...eq2$

Money I have left with can be find by subtraction,i.e.

Eq1-Eq2

$100 {x}^{3} - 5x + 3 - (80 {x}^{3} - 2 {x}^{2} + 9)$

$= 100 {x}^{3} - 5x + 3 - 80 {x}^{3} + 2 {x}^{2} - 9$

as sign under brackets are change when (-) sign is present before bracket.

$= 20 {x}^{3} + 2 {x}^{2} - 5x - 6 \: pesos$

Find answer:

Money left in my pocket is

$\bf 20 {x}^{3} + 2 {x}^{2} - 5x - 6 \: pesos$

Hope it will help you.

To learn more on polynomial:

1) h(x)= 7x³- 6x +1 f(x) =7x²+ 17x -9. Add the polynomials and find the degree of the resultant polynomial.

https://brainly.in/question/5721971

2) (x4-x3+2)÷(x+2) polynomial

Long division

synthetic division

reminder theorem

factor theorem

(Solution)

https://brainly.in/question/11569266