Question

HEMATICS
(iv) a? - 9,40
solu
0
EXERCISE 9.3
1. Carry out the multiplication of the expressions in each of the following pairs.
(i) 4p, q+r
(ii) ab, a - b Gir) a + b, Ta'b?
(v) P9+ qr + rp, 0
2. Complete the table.
Dolyelem
Product
First expression
(i)
x + y - 5
Second expression
b+c+d
5xy
6p? - 7p + 5
p2- q?
abc
P
(iv)
4p?q?
a + b + c
xy Jх
=
3. Find the product.
(i) (a?) x (2a22) x (4a26)
(ii)
10
10
pq” x
(iv) x x x x x x x
3
1
4. (a) Simplify 3x (4x - 5)+3 and find its values for (i) x = 3 (ii) x =
2
(b) Simplify a (a² + a + 1) + 5 and find its value for (i) a = 0, (ii) a = 1
(iii) a = -1.
5. (a) Add: p(p-9),q(q-r) and r(r-p)
(b) Add: 2x (2 - x - y) and 2y (z - y - x)
(c) Subtract: 31 (1-4 m + 5 n) from 41 ( 10 n - 3 m +21)
(d) Subtract: 3a (a + b + c)-2 b (a - b + c) from 4c (- a+b+c)
answer me and receive your points ​

Answer 1

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