Juliadraak
Juliadraak
14-12-2016
Mathematics
contestada
How do I simplify this?
((−(4 x))−5) (3 x−9)
Respuesta :
amanda74
amanda74
14-12-2016
(
−
4x
−5
)
(
3x
−9
)
=
(
−
4x
+
−5
)
(
3x
+
−9
)
=
(
−
4x
)
(
3x
)
+
(
−
4x
)
(
−9
)
+
(
−5
)
(
3x
)
+
(
−5
)
(
−9
)
=
−
12
x2
+
36x
−
15x
+45
=
−
12
x2
+
21x
+
45
Answer Link
Korianna
Korianna
14-12-2016
Hi there!
To simplify is, well, simple.
Here is what you need to do:
((-(4x))-5)(3x-9)
= (-4x+-5)(3x+-9)
=(-4x)(3x)+(-4x)(-9)+(-5)(3x)+(-5)(-9)
=-12x²+36x-15x+45
=-12x²+21x+45
Your answer simplified is
-12x²+21x+45
Hope this helps!
Answer Link
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