My method is on a) you would just subtract 12 and 7 which is 5. You can do the rest and then when you get all the answers put them from smallest to largest
Hey There.
Hope your well.
2(−3x)(−4x+x−7)
=(2(−3x))(−4x+x+−7)
=(2(−3x))(−4x)+(2(−3x))(x)+(2(−3x))(−7)
=24x^2−6x^2+42x
<u>=18x^2+42x</u>
Hope this helps,
<em>Azumayay</em>
