plz solve ii ,iv ,vii, ix ,Q2 ii, iv, v and Q4 ,Q5
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Q1.
ii. 3/5x,2/3x,-4/5x
= 3/5x+2/3x+(-4/5x)
= 3/5x+2/3x-4/5x
= 9/15x+10/15x-12/15x
= 19/15x-12/15x
= 7/15x
iv. 3/4x2, 5x2, -3x2, -1/4x2
= 3/4x2+5x2+(-3x2)+(-1/4x2)
= 3/4x2+5x2-3x2-1/4x2
= 3/4x2+20/4x2-12/4x2-1/4x2
= 23/4x2-11/2x2
= 12/4x2
vii. 5x-2x2-8,8x2-7x-9,3+7x2-2x
= 5x-7x-2x-2x2+8x3+7x2-8-9+3
= -4x+13x2-14
Q2.
ii. x2 from -3x2
= (-3x2)-x2
= -3x2+(-x2)
= -4x2
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