What is the simplified form of of (-7xº+5x²-x+6)-(-8x2 + x +3)?
ОА.
-x + 4x2 - x+3
OBX + 4x² - x+3
ocx - 4x² – 2-3
D. -15x + 6x? - X+9
Please I need help immediately

Note: Your answer choices remain a little unclear. But, I have solved the concept and solution, so you can easily figure it out.

Step-by-step explanation:

Given the expression

solving the expression

apply the rule:

simplify

Therefore, the simplified form is:

Note: Your answer choices remain a little unclear. But, I have solved the concept and solution, so you can easily figure it out.

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere