Mathematics, 15.10.2019 02:30 jetblackcap

pls solve! i don't understand!

Answers: 3

Show answers

Answers

Answer from: angellong94

Simplify the radical by breaking the radicand up into a product of known factors.
3

Answer from: sin16

The answer is indeed 3, i would just use a calculator, otherwise just learn the cube rules.

3x3x3 = 27 = 3^{3}
to reverse the ^3, use the cube root like in your question. reverse a square by taking the square root etc etc

Answer from: Quest

When two lines intersect, they form two pairs of equal angles, which, taking one of each, add up to 180°. (jargon: angles forming a straight line show more

Answer from: Quest

2x^2 -2x -12 = 02(x -3)(x +2) = 0see below for explanation

step-by-step explanation:

equation

you are asked to write the equation

expression = 0

using the given expression. when you do that, you have

2x^2-2x-12 = 0

factoring

you can see that each of the coefficients is even, so a factor of 2 can be removed immediately.

2(x^2 -x -6) = 0

if you multiply the binomials (x+a)(x+b), you get

(x +a)(x +b) = x^2 +(a+b)x +ab

this tells you the coefficient of x is the sum of two factors of the constant term. here, that means -1 is the sum of two factors of -6. we want to know those factors so we can factor the trinomial.

-6 = -1×6 = -2×3 = -3×2 = -6×1

the factor pair that sums to -1 is {-3, 2}, so our factorization is

2(x -3)(x +2) = 0

solutions

the solutions to this equation are the values of x that make the product zero. a product is zero only when only of the factors of the product is zero. here, that means

x - 3 = 0

x = 3 . . . add 3 to both sides of the equation

x +2 = 0

x = -2 . . . add -2 to both sides of the equation

the solutions to the equation are x=3 or x=-2. both of these values of x satisfy the equation—they make it be true.

Another question on Mathematics

Mathematics, 21.06.2019 15:30

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

Answers: 3

Answer

Mathematics, 22.06.2019 01:00

How many zeros does this polynomial function, y=(x-8)(x+3)^2

Answers: 1

Answer

Mathematics, 22.06.2019 01:00

Find all the angles that satisfy the equation cos(θ)=32

Answers: 2

Answer

Mathematics, 22.06.2019 01:30

For the functions f(x) = -922 – 2x and g(x) = -32? + 6x – 9, find (f - g)(x) and (f - ).