4 years ago

Solve for(x-4)(x+4)=

Mathematics

1 answer:

Lubov Fominskaja [6]4 years ago

7 0

Answer:

x^2-16

Step-by-step explanation:

x^2-4^2

x^2-16

difference of squares

You might be interested in

Which equation is a point-slope form of the equation of this line (-2, 1 ) and (1, 7 )

lana [24]

The point-slope formula:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have (-2, 1) and (1, 7).

Substitute:

$m=\dfrac{7-1}{1-(-2)}=\dfrac{6}{3}=2$

$y-1=2(x-(-2))\\\\y-1=2(x+2)$

6 0

3 years ago

Evaluate this function at the given value using the remainder theorem.

MAXImum [283]

Answer:

Step-by-step explanation:

$f(x) = x^4 +5x^3 -18x +1\\\\f(-4) = (-4)^4 +5(-4)^3 -18(-4) +1\\\\~~~~~~~~~=256+5(-64)+72+1\\\\~~~~~~~~~=329-320\\\\~~~~~~~~~=9$

6 0

2 years ago

If a = -3, determine the value of 4a + 5+ 8a. HELP PLEASE

Y_Kistochka [10]

Step-by-step explanation:

I4(-3)+5| +8(-3)

|-12+5| -24

7-24 = -17

3 0

3 years ago

Ms. Patel has 24 students in her class. When she collected yesterday's homework, Ms. Patel found that 16 students completed the

azamat

Answer:

Maybe

1/8 is the probability that the first two assignments Ms.patel collected were completed in pencil

8 0

3 years ago

What is the height of a square pyramid with a volume of 75 cubic feet and base length of 5 feet

natima [27]

So hmm notice the picture below

is a "square" pyramid, thus, the base is a square, all sides are the same

now, we know the volume is 75 and one side is 5

thus $\bf \textit{volume of a pyramid}\\\\
V=\cfrac{1}{3}\cdot Base\cdot height\qquad 
\begin{cases}
Base=length\cdot width\\
\qquad\qquad 5\cdot 5=25\\
V=75
\end{cases}\\\\\\ 75=\cfrac{1}{3}\cdot 25\cdot h$

solve for "h" or height

5 0

3 years ago

Read 2 more answers