Answer:
2
i think
Step-by-step explanation:
Answer:
x = 45
Step-by-step explanation:
(2x + 6)/3 = (5x - 1)/7
<em>Cross multiply</em>
7(2x + 6) = 3(5x - 1)
<em>Expand both expressions</em>
14x + 42 = 15x - 3
<em>Collect like terms</em>
42 + 3 = 15x - 14x
45 = x
x= 45
<em>Check:</em>
7(2*45 + 6) = 3(5*45 - 1)
7(90 + 6) = 3(225 - 1)
7 * 96 = 3 * 224
672 = 672
Answer: 2x5−3x4−8x3+12x2
Step-by-step explanation:
(2x2−3x)(x3−4x)
=(2x2+−3x)(x3+−4x)
=(2x2)(x3)+(2x2)(−4x)+(−3x)(x3)+(−3x)(−4x)
=2x5−8x3−3x4+12x2
=
