it's not :L
nine million two hundred and sixty four thousand and ten 9,264,010
One pair, 10z and -4z, since like terms are only terms that contain the same variable(s) with the same exponent.
81 + 63 = 144
There is no "why", because two plus two IS, in fact, four.
two plus two just does equal four.
because two plus two plus two is four and two times two is just he same thing but in multiplication.
four thousand two hundred and ten = 4210
Nought plus twelve. One plus eleven. Two plus ten. Three plus nine. Four plus eight. Five plus seven. Six plus six !
One plus two plus three plus four is ten. 1+2=3. 3+3=6. 6+4=10.