Chad was asked whether the following equation is an identity:
(3x + 2y)2 = (3x + 2y)(3x – 2y) + 2(2y)?
He performed the following steps:
(3x + 2y)?
Step 1, = 9x2 + 4y?
Step2 = 9.? + 4y? + 4y? – 4y?
Step3
= (9x² – 4y?) + 8y?
Stept
= (3x + 2y)(3x – 2y) + 2(2y)?
For this reason, Chad stated that the equation is a true identity.
Is Chad correct? If not, in which step did he make a mistake?

Zroms according to the synthetic division below, which of the following statements are true? check all that apply. 352 -2 6 -12 12 2 4 0 i a. (x-3) is a factor of 2x2 - 2x - 12. b. the number 3 is a root of f(x) = 2x2 - 2x - 12. c. (2x2 - 2x - 12) = (x + 3) = (2x + 4) d. (2x2 - 2x-12) - (x-3) = (2x + 4) e. (x+3) is a factor of 2x2 - 2x - 12. o f. the number -3 is a root of fx) = 2x2 - 2x - 12. previous

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The function models the number of accidents