Question

x square - 81y square factorise​

Answer 1

Answer:

Step-by-step explanation:

x2 - 81y2

= (x)2 - (9y)2

= ( x - 9y) (x + 9y)

plz mark as brainliest

Answer 2

Step-by-step explanation:

Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit. To students of electronics, Ohm's Law (E = IR) is as fundamentally important as Einstein's Relativity equation (E = mc²) is to physicists. E = I x R.