Assignment:
Q1. Solve for x
6x+21-4x+21=4
4x-6=x+3
Q2. Simplify (-3x-3x^5-3)+(-9x^5 - 3+7x)
a)-12x^5 -6x-6,
b)-12x^5 -46x+4,
c)-12x^5 +4x,
d)-12x^5 +4x-6
Q3. Simplify (8g^3 +6)-(3g^2 -3)+(3g^3 + 2g^2)
Q4. Simplify (4x^3 + 4x^2 + 4)-(5x^3 - 7x^2 +6x - 4)
a)-x^3 +11x^2 -6x+8,
b)x^3 -11x^2 +6x,
c)-x^3-11x^2 -6x,
d) -x^3-11x^2+6x+8
Q5. Simplify 36x^7 y^5
-9x^5 y^7
a) 4x^2 y^2,
b)2x^12/(y^12),
c)2x^12/(y^12)
d)4x^2/ y^2.
Provide complete and step by step solution for the question and show calculations and use formulas.