Question

hey aryan257553 i have a doubt in the pic given above how -15*-X will be -15

it should be +15 coz -*-=+

please can anyone answer zhis question and verify the answer​

Answer 1

Answer:

look only 15 is being multiplied. ‘-' stays same as it was outside the brackets

Answer 2

Answer:

We multiplied it by 15 and not - 15

That's why, it is - 15x

If we multiply it by - 15, then we would have changed the sign outside the bracket from '-' to '+'

Hope it helps you:)