Question

(2p-3q+r)²-9(p-q)² fractorise​

Answer 1

Step-by-step explanation:

2a+3(4)−1=0

=>2a+12−1=0

=>2a=−11

=>a=

2

−11

2(−2)+3b−1=0

=>−4+3b−1=0

=>3b=5

=>b=

3

5

6x+6y−25

=6×(

2

−11

)+6×(

3

5

)−25

=−33+10−25

=−48

Equation of the line joining (4,−5) and (1,2)

y+5

x−4

=

2+5

1−4

=>

y+5

x−4

=

7

−3

=>7x−28=−3y−15

=>7x+3y+7=0