Factor completely

1) 6x^2 + 42x

2) x^2 − 7x − 30

3) x^2 + 9x +20

4) x^2 - 14x +48

5) 2x^2 +21x - 11

6) 5a^2 - 125

7) 8x^2 - 6x - 9

8) 4x^2y - 24xy + 32

( I never asked a question before so yeah idk what to say)

1) 1^2+x

2)1

3)3(3x+7)

4)(x-8)(x-6)

5)(2x-1)(x+11)

6)5(a^2+25)

7)(2x-3)(4x+3)

8)32(3x^3y+1)

Step-by-step explanation:

0

step-by-step explanation:

you can not divide by 0 so 4 ÷ 0 would be 0

0 × 9999 =0

mark brainliest   : )

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.