Question

VIII A
Ifx=1;y=2 find the values of the following expressions
(1) 4x-3y + 5 (in) x² + y 2 (ii) xy + 3y - 9
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Answer 1

Step-by-step explanation:

i hope you got your answer and if it is wrong please type the question clearly

Answer 2

Answer:

(1) 3, (2) 5, (3) -1

Step-by-step explanation:

x = 1 , y = 2

(1) 4x - 3y + 5

4 × 1 - 3 × 2 + 5

4 - 6 + 5

-2 + 5

»»» 3

(2) x² + 2y

(1)² + 2 × 2

1 + 4

»»» 5

(3) xy + 3y - 9

1 × 2 + 3 × 2 - 9

2 + 6 - 9

8 - 9

»»» -1