Question

la resta ( 4×2 -7XY) - ( -6X2 + 2XY) es?

Answer 1

Respuesta:

$\left(4\left(2\right)-7xy\right)-\left(-6\left(2\right)+2xy\right)$

$=4\cdot \:2-7xy-\left(-6\cdot \:2+2xy\right)$

$=8-7xy-\left(2xy-6\cdot \:2\right)$

$=8-7xy-\left(2xy-12\right)$

$=8-7xy+12-2xy$

$=-9xy+20$

espero y sirva :'3