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Reil [10]
2 years ago
11

How do you solve a perfect square trinomial??

Mathematics
1 answer:
Nuetrik [128]2 years ago
7 0

Answer:

Step-by-step explanation:

Here's an example:

x^2 + 6x + 9 = 0

First factorise it:

(x + 3)(x + 3) = 0

So the solution is  x = -3 (multiplicity 2)

That is there are 2 roots both -3.

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Which equation is rewritten in vertex form?
Zinaida [17]
(x + 3)^2 + (x + 4)^2 
= x^2 + 6x + 9 + x^2 + 8x + 16
= 2x^2 + 14x + 25
= 2(x^2 + 7x) + 25
= 2[(x + 7/2)^2  - 49/4] + 25
= 2(x + 7/2)^2 - 98/4 + 25
= 2(x + 7/2)^2 + 1/2


Its B

7 0
2 years ago
Simplify 4a​ +​ ​ ​8b ​ -​ ​ ​6b​ +​ ​ 2a​
Deffense [45]
Here is your answer:                                                                                                                              Combine like terms:                                                                                              4a+2a=6a and 8b-6b=2b                                                                                        Your answer is 6a+2b
8 0
2 years ago
Pls help with 19 tysm its also worth branliest ty if u help
Mariana [72]
I’ll help you out, but what are the numbers in between? Like does it go boy 0, .3, .6, .9, to 1? Or is there a different pattern
5 0
3 years ago
Read 2 more answers
Please help me solve this step by step please!!
qaws [65]

Answer:

7^(1-3+1) = 7^-3

Step-by-step explanation:

Here is the rule you should know: when multiplying powers of the same base you add the exponents ans when dividing powers of the same base you subtract the exponents.

Also, if there is no number at the exponent, it is 1.

4 0
3 years ago
Read 2 more answers
315 + 6x = 90 + 15x can anyone help with this? please
mario62 [17]

Answer:

315-90 = 15x-6x

225 = 9x

9x/225

x = 25

8 0
3 years ago
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