Question

If the each of algebraic expressions lx² + mx + n, mx² + nx + 1 and nx² + lx + m are prefect squares, then
l+m/ n =

​

Answer 1

Step-by-step explanation:

A room is 20m long, 15m wide and 12m high. It contains a door 7.5m × 4m and two windows of size 4m × 2.5m. Find the cost of painting its wall @ rs. 15 per m2

Answer 2

Answer:

-4

Step-by-step explanation:

you solve it by yourself

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