Please help Adding/Subtracting Polynomials
1. (a^2 + ab – 3b^2) + (4a^2 – ab + b^2)
2. (7a^2–a+4)–(3a^2–4a–3)
3. (5e^2–e–7)–(-2e^2+3e+4)
Multiplying Polynomials
4. 4a(3x+5)
5. 6rs(2r^2+3rs)
6. 3x(5x^2–x+4)
7. (a+b)(2a–3b)
8. (z–2x)(z–2x)
9. (2y+3)(y^2+3y–6) 10.(e – f)(e^2 – 2ef + f^2)

Two different linear functions are shown below with two points given from each function. use slope-intercept form or point-slope form to find the equation of each. linear function a points: (–5, –2), (–5, 7) linear function b points: (7, –5), (–2, –5) function a has: the equation of line a is: function b has: the equation of line b is:

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.