Posts Tagged ‘math’

Math Help Matrix

math help matrix
Question: Math Matrices (matrix) Problem?

i have this question and ive been stuck on it for ever i just don’t understand it can someone help me out!

Find the value of K

K[ 3 , -1 ] = [ -3/4 , 1/4 ]
–[ 5 , -4 ]—-[ -5/4 , 1 ]

Answer: Bring the K inside the matrix and then pick any element to solve
[ 3K -K ] =
[ 5K -4K ]

[ -3/4 1/4]
[ -5/4 1 ]

3K=-3/4
K=-1/4

Algebra – Matrices – Gauss Jordan Method Part 1 Augmented Matrix


Math Homework Grading

math homework grading
Question: Need help with these 6th grade math homework question?

Lisa farted 4x more than twice the times Megan farted. If Megan farted 55 times, then how many times did Lisa fart?

Answer: 4x=immaturity

Improve your math grade!


Math Help Factoring Polynomials

math help factoring polynomials
Question: Can someONE hELP ME ON A Couple of math questions.Factoring Polynomials?

Divide.
(3a^3 + 6a^2) divided by 3a

3a3 + 6a2 – 3a

3a3 + 6a2 + 3a

a2 + 2a

a2 + 6a2

5. Determine whether the polynomial is a perfect square and if it is, factor it.
n2 – 6n + 9

not a perfect square

is a perfect square: (n + 3)2

is a perfect square: (n – 3)2

is a perfect square: (n – 6)2

6. Determine whether the polynomial is a difference of squares and if it is, factor it.
y2 – 25

not a difference of squares

is a difference of squares: (y – 5)2

is a difference of squares: (y + 5)(y – 5)

is a difference of squares: (y + 5)2
thanks you guys

Answer: Divide.
(3a^3 + 6a^2) divided by 3a
= 3a³/3a + 6a²/3a
= a² + 2a

5. Determine whether the polynomial is a perfect square and if it is, factor it.
n² – 6n + 9
middle term = – 6n
= 2 ×√n³ × √9
= ± 2 × n × 3 = ± 6n
as middle term is – 6n it is a perfect square.
= (n – 3)²

6. Determine whether the polynomial is a difference of squares and if it is, factor it.
y² – 25
= (y)² – (5)²
= (y + 5)(y – 5)
is a difference of squares: (y + 5)(y – 5)
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Math Fractions & Equations : Factoring Trinomials