1. (1.2z)(-4+2y)
(1.2z)(-4) + (1.2z)(2y)
= -4.8z + 2.4yz
2. (-2e - 3f +4)(-e)
(-2e)(-e) -3f(-e) +4(-e)
= 2e^2 + 3ef -4e
3. (7v)(-7v-7x)
7v(-7v) -7x(7v)
= -49v^2 -49xv
4. (-4x)(-7+3y)
(-4x)(-7) + 3y (-4x)
= 28x - 12xy
5. (b) (-0.1a + 8b -0.7c)
(b) (-0.1a) +8b(b) -0.7c(b)
= -0.1ab + 8b^2 - 0.7bc
Multiply
1. (1.2z)(-4+2y)
2. (-2e - 3f +4)(-e)
3. (7v)(-7v-7x)
4. (-4x) (-7+3y)
5. (b)(-0.1a + 8b-0.7c)
please help me, I have done these questions but im pretty sure my answers are wrong, so can someone do these or help me so i can understand how to do this, thanks :)
1 answer
1 answer