<span>No, 7 is a natural number divisible by 7 and not 14 for example. In fact every odd multiple of 7 (i.e. 7 times 1,3,5,7,...) is divisible by 7 and not 14.</span>

8 0

4 years ago

Factor completely x2 - 16y2

Y_Kistochka [10]

Answer:

(x+4y)(x-4y)

Step-by-step explanation:

Since

$\large a^2-b^2=(a+b)(a-b)$

we can see that

$\large x^2-16y^2=(x+4y)(x-4y)$

3 0

4 years ago

I want to solve this equation Step by Step 10x-23=29-3x

icang [17]

Step-by-step explanation:

first add 23 to both sides and get 10x=52-3x then add the 3 to the 10x and get 13x=52

then divide both sides by 13 and you should get x = 4

8 0

4 years ago

Let f(x)= x^4 + ax^2 +b. The graph of f has a relative minimum at (0,1) and an inflection point when x=1. The values of a and b

Delvig [45]

$f(x)=x^4+ax^2+b\\f'(x)=4x^3+2ax\\f''(x)=12x^2+2a\\f''(1)=12(1)^2+2a\\12(1)=-2a\\a=-6\\\\f(x)=x^4-6x^2+b\\(1)=(0)^4-6(0)^2+b\\b=1$

a=-6
b=1

8 0

4 years ago