Find the leg of each isosceles right triangle when the hypotenuse is given the measure 12 cm

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

With both problems. a.s.a.p directions on photo ^

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25