jairus34
12.03.2021 •
Mathematics
Write
(4 – √5)(4 + √5)
ſa
in the form
2 11
b
where a and b are integers.
Find the values of a and b.
Solved
Show answers
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Ответ:
15x^2-14x-4
Step-by-step explanation:
(8x^2 * x-7x+2)+(7x^2 -7x-6)
you take out the parentheses
you add the common ones so -7x+-7x= -14x
8x^2 +7x^2 = 15x^2
and 2-6= -4
so in total it's 15x^2-14x-4