Question

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Practice set 4.3
7
(1) If
then find the values of the following ratios.
b 3
5a +36
5a-3
2a +362
2a? - 362
a b
b
(ii)
7a +95
7a-96
(iii)
(iv)
(2) If
15a² +462 47
15a2 - 462 7
then find the values of the following ratios.
7a-36
6² - 2a²
(i)
(ii) 7a+ 3b
(iii) +20
(iv)
b-2a
b+ 2a
b
3a + 7b 4
3a-7b3
(3) If
3a? - 762
3a +7b2.
then find the value of the ratio
fi)
(ii)
II
(4) Solve the following equations.
x2 +12.x -20 +8x+12
3x-5 2x+3
(2x + 1)² + (2x - 1)2 17
(2x + 1)? - (2x - 1)2 8
(4x+1)+(2x +3) 61
(v)
4r +12x +9
36
(iv)
10x² +15x+63 2x+3
5x? - 25x+12
√4x+1+√x+3 4
√4x+1-√x+3
(3x - 4)-(x+1) 61
(3x - 4) + (x+1)
(vi)
189
Activity : In the following activity the vol.​

Answer 1

Answer:

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