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Assignment 2 Questions Q1.

   

Added on  2023-04-07

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Assignment 2 Questions
Q1.
a)36
36=2*2*3*3
b)360
360=2*2*2*5*3*3
Q2)
a) 2𝑥−20
5
b) 2−3𝑥
3
c) 2𝑦+1
3
d) 3𝑦−𝑥
𝑦
Q3)
a) 𝑎2 − 5𝑎 + 3𝑎 − 15
=𝑎2 − 2𝑎 − 15
b) −𝑏2 + 2𝑏 + 2𝑏 − 4
= −𝑏2 + 4𝑏 − 4
c) −2𝑥2 + 𝑥 − 𝑥 + 1
2
=−2𝑥2 + 1
2
=−4𝑥2+1
2
d) −𝑦2 − 2𝑦 + 𝑦
3 + 2
3
=−𝑦2 − 5𝑦
3 + 2
3
=−3𝑦2−5𝑦+2
3
Q4)
a) x-2y=-1..................................1)
x-y=1......................................2)
2)-1)
Gives y=2
Substituting the value in 2)
x=3
b) 2x-4y=6.................................1)
x=y+1.....................................2)
substituting 2)in 1)
2y+2-4y=6
y=-2

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