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Syllabus

Q) Factorise:

${x}^{4}-14{x}^{2}+1$

^{a2}+4^{b2}97, 103, 109, 127, ......

^{4}+5x^{2}+9. Factorize this50x^2-2(x-2)^2

16 (a + b) ^ 2 - 4a - 4b

1/35 + 12a/35 + a

^{2}x^4 + y^4 - 27x^2y^2

Q.4. ${x}^{4}+{y}^{4}-27{x}^{2}{y}^{2}$

x^2+3x+2+ ax+2a

^{2}-1)(y^{2}-1)+4xy[6(x+2y)^3]+[8(x+2y)^2]

Factorise the following

9(X+y)whole square -x square

Q.11.(i) $9{x}^{4}-{x}^{2}-12x-36$

$\left(7{x}^{3}-63x\right)\xf77\left(x-3\right)$

^{2}-5p+9/43a=1y

3x-2a=-20

^{}^{4}+36x^{2}y^{2}+81y^{4}y+z=6yz

z+x=7zx

Find x+y+z.

Q.13. $16{y}^{4}-81$

Q. $3{x}^{2}y-3xy+12x-12$

Factorise:

1. 8x

^{2}y^{3}- x^{5}(a) x^2 + 1/x^2 - 11

(b) 4x^2 + 1/4x^2 + 1

9x^4 - x^2 - 12x - 36

^{9}+y^{9}1/35 +12/35a+a?

Answer quickly

17. If a+b+c=0, find : $\frac{{\mathrm{a}}^{2}}{2{\mathrm{a}}^{2}+\mathrm{bc}}+\frac{{\mathrm{b}}^{2}}{2{\mathrm{b}}^{2}+\mathrm{ca}}+\frac{{\mathrm{c}}^{2}}{2{\mathrm{c}}^{2}+\mathrm{ab}}$

Factorise-

n

^{2}+ 2an (a + b) (a - b) plz explain