+0

# help

0
136
4

Evualuate       For a = 1 1/2

\begin{align*} (5a^2 - 13a + 4)(2a - 3) \end{align*}

Apr 21, 2019

#1
+7711
+1

When a = 1 1/2 = 3/2,

$$2a = 3\\ 2a - 3 = 0$$

$$(5a^2-13a+4)(2a - 3) = (5a^2-13a+4)(0) = 0$$

.
Apr 21, 2019
#2
+128
-2

To evaluate this expression, let's first start with 2a-3. We know a = 3/2. Thus, 2a - 3 is 3 - 3 which is 0. We know anything times 0 is 0 so...

~~Hypotenuisance

Apr 21, 2019
#3
+1

0!! Is the double factorial of zero (0), and that equals one (1)

0!! =1

Are saying the answer is one (1), or are you related to Mr. !!!BB?

Guest Apr 21, 2019
#4
+103678
+1

Hi Hypotenuisance,

What guest is telling you is that the exclamation mark ! has a mathematical meaning of its own.

So do not use it the way that you just did.

Melody  Apr 22, 2019