Question

Group - C
Q.1(a) Find the following products.
(i) 3x4 x 7x3
(ii) 5abc x 3abc
(iii) (2a + 3b ) (3a + 4b)
(b) Find the products.
(i) (x2 - 4x + 5) (x + 3) (ii) ( 5x2 + 3x +7) (2x - 3)
Q.2 (a) Divide :
(i) x + x3
(ii) a5 - a2 (iii) a - a
(b) Divide :
(i) ( 10y + 8) +2 (ii) (2x3 - 3x2 ) + x2
Q.3 (a) Find the squares of:
(i)(a + b) (ii) (2a + 3b ) (iii) (3a + 4b )
)
(b) Simplify:
() (4a + 5b ) (ii) ( 5x - 7y)?
Q.4 (a) Find the value of x , if :
(i) 15x = 482 - 332 (ii) 54x = 972 - 432 (iii) 50x = 272 - 232
(b) If x + 1 = 6, find the value of:
х
(i) x2+ 1
x2
(ii) If x + y = 15 and xy = 17, find the value of x2 + y2 ,​

Answer 1

Answer:

(i) 252

ii 15abc

iii 18/25

iii

Answer 2

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Step-by-step explanation:

1. 252
2. 15abc
3. 18/25