Factorize the following expression a) 7p-14q+63

1.	Factorize the following expression a) 7p-14q+63
Answer» ONG>Step-by-step explanation:P> Consider first your TWO initial equations forming a System: { 7 p + 5 q = 2 8 p − 9 q = 17 Let us solve this system to find p and q : to solve it let us multiply the first equation by 9 , the second by 5 and ADD them together in columns: { 9 × 7 p + 5 q = 2 5 × 8 p − 9 q = 17 { 63 p + 45 q = 18 40 p − 45 q = 85 add them: 103 p + 0 = 103 so: p = 103 103 = 1 substituting into the first equation we GET: 7 + 5 q = 2 q = − 1 Using these values of p and q into: − p + 14 q you get: − 1 − 14 = − 15

Answer» ONG>Step-by-step explanation:P>

Consider first your TWO initial equations forming a System:

{

−

Let us solve this system to find

and

: to solve it let us multiply the first equation by

, the second by

and ADD them together in columns:

{

−

{

−

add them:

103

so:

103

substituting into the first equation we GET:

−

Using these values of

and

into:

−

you get:

−

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