Question

x^2-3x-28byx^2-49=3by17​

Answer 1

Answer:

the metal is made up individual particle is known as atom atom atom atomic mass unit atomic mass is the total number of mass is neutron electron protons in an atom or in group of economics and every of group

Answer 2

Answer:

x*x-3x-28 = (x-7)(x+4)

x*x-49 = (x-7)(x+7)

x*x-3x-28 / x*x-49

= (x-7)(x+4)/(x+7)(x-7)

=x+4 / x+7

so x+4 / x+7 =3/17

17x+68=3x+21

14x=-47

so x=-47/14

Step-by-step explanation:

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