Is this a difference of squares? x2−30 1. yes because it involves a minus sign 2. yes because it starts with an x2 3. no because it starts with an x2 4. no because the 30 is not a perfect square number factor this difference of squares. 16x2−25 1. (16x−5)(16x+5) 2. (4x−5)(4x+5) 3. (4x−25)(4x+25) 4. (4x2−5)(4x2+5)

we know that

The difference of squares is two terms that are squared and separated by a subtraction sign

so

Part a)

we have

we know that

-------> is not a integer

so

The number 30 is not a perfect square number

therefore

the answer part a) is the option

4. No because the 30 is not a perfect square number

Part b)

we have

we know that

so

therefore

the answer part b) is the option

2. (4x−5)(4x+5)

answer: 5100 just subtract

step-by-step explanation:

answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

step-by-step explanation: mark as brainlest reallly need it thx