Answer: 9x + 4x²
Explanation:
1) Length = 14x - 3x² + 2y
2) Width = 5x - 7x² + 7y
3) Length - width = [14x - 3x² + 2y] - [5x - 7x² + 7y]
4) Calculate:
i) Distribute the negative sign in front of the second polynomial:
14x - 3x² + 2y - 5x + 7x² - 2y
ii) Combine like terms:
9x + 4x²
5) Answer: 9x + 4x²
Answer:
x=-1/2
Step-by-step explanation:
Given:
8x^3+12x^2+6x+1=0
Making factors of the given polynomial by using cube formula, given as
(a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3
Re-writting the given polynomial:
(2^3.x^3) + 3(2^2.x^2)(1)+3(2x)(1) + (1^3)=0
Hence (2^3.x^3) + 3(2^2.x^2)(1)+3(2x)(1) + (1^3) can be written as (2x+1)^3
(2x+1)^3= 0
2x+1= 0
2x= -1
x= -1/2 !
Answer:
R = 25
Step-by-step explanation:
We know that the number of cakes is dependent on the time spent in baking.
We are given that Carmen can bake 84 cakes in 1.6 hours, therefore, to know the number of cakes that she can bake in 2 hours, all you have to do is cross multiplication as follows:
number of cakes = (2*84) / 1.6 = 105 cakes
