Question

Question : Check whether 7 + 3x is a factor of 3x3 + 7x.​

Answer 1

Answer:

=}}} Solution,

Given,

let, f(x) = 3x3 + 7x.

= 3x^3 + 0x^2 + 7x + 0

g(x) 3x3 + 7x. 7 + 3x

Comparing g(x) with x - a

we get

a = - 7

3

According to factor theorem,

If g(x) is the factor of f(x) then

f(a) = 0

Now,

f(a)

= f( -7 )

3

= 3(-7/3^3)+ 0(-7/3^2)+ 7(-7/3) + 0

= -7/9 + 0 -49/3 + 0

= -343 - 147

9

= 490/9

= 70

Therefore the given g(x) is not the factor of f(x)

......Hope .....it ..........helps.....u

Answer 2

Answer:

ANSWER

For 5x−6y+30=0:

x 0 -6 6

y 5 0 10

For x−y−1=0:

x 0 4 -4

y 5 0 10

As the graph shows, vertices of triangle are (0,5),(−6,0)&(4,0).

Answered By

Step-by-step explanation:

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