Respuesta :
Answer:
[tex](40-2)^2[/tex]
Step-by-step explanation:
Given: [tex](38)^2[/tex]
To find: the correct option
Solution:
A binomial polynomial is a polynomial consisting of two terms.
A trinomial polynomial is a polynomial consisting of three terms.
On multiplying a binomial [tex](x-y)[/tex] to itself, a perfect square trinomial [tex](x-y)^2[/tex] is obtained.
Here, [tex]38=40-2[/tex]
So, [tex](38)^2=(38)(38)=(40-2)(40-2)=(40-2)^2[/tex]
Here, [tex](40-2)[/tex] is a binomial and it is multiplied to [tex](40-2)[/tex] to get a perfect square trinomial [tex](40-2)^2[/tex]
Answer:
(40 − 2)^2
Step-by-step explanation:
(First just do simple math to narrow down your choices)
A: (40 − 2)^2
40 - 2 = 38
B: (40 + 2)^2
40 + 2 = 42
C: (29 − 9)^2
29 - 9 = 20
D: (29 + 9)^2
29 + 9 = 38
(Now you just have A and D)
A: (40 − 2)^2
D: (29 + 9)^2
(Determine which properly expresses a Perfect Square Trinomial)
A: (40 − 2)^2
I just took the test.
