Question

plzzzz friends solve these questions.........I just want to check this.. because this is all the extra questions.


1.Factorisation of 4x^2+8x+3 is
a). (x+1)(x+3)
b). (2x+1)(2x–3)

2.If x/y+ y/x= –1 (x,y≠ 0), the value of x³–y³ is
a).– 1
b). 1/2

3. check whether p(x) is a multiple of g(x) or not:

a).p(x)=x³–5x²+4x–3, g(x)= x–2

4.Factorise the following:
a).(4a–b+2c)²
b).(–x+2y–3z)²

5. find the following product:–
(x/2+2y)(x²/4–xy+4y²)

6. without actual division,prove that 2x²–5x³+2x²–x+2 is divided by x²–3x+2...[HINT ★ factories x²-3x+2]

7.Multiply x²+4y²+z²+2xy+xz -2yz by (–z +x - 2y).

** here is seven questions......

solve with step by step ............carefully.★★★....‚

I see who solve these questions first...

Answer 1

pls tell 2nd 3 is no

Answer 2

1. (2x+1)(2x+3)

3.
${x}^{4} - {7x}^{3} + {14x}^{2} - 11x + 6$
4. a).
${16a}^{2} + {b}^{2} + {4c}^{2} - 8ab + 16ac - 4bc$
b).
${x}^{2} + {4y}^{2} + {9z}^{2} - 4xy + 6xz - 12yz$
5.
$(\frac{x}{2} ) {}^{3} +( 2y) {}^{3} \\ \frac{ {x}^{3} }{8} + 8 {y}^{3}$
7.
${x}^{3} - {8y}^{3} - {z}^{3} - 6xyz$