3 years ago

Factor completely 49x^2-25

Mathematics

2 answers:

melomori [17]3 years ago

4 0

Answer:

(7x-5)(7x+5)

Step-by-step explanation:

natta225 [31]3 years ago

4 0

Answer:

(7x + 5)(7x - 5)

Step-by-step explanation:

49x² - 25 ← is a difference of squares and factors in general as

a² - b² = (a + b)(a - b)

49x² = (7x)² ⇒ a = 7x

25 = 5² ⇒ b = 5

49x² - 25

= (7x)² - 5² = (7x + 5)(7x - 5)

You might be interested in

How would you break down 40% to find 40% of a number<br>

Alika [10]

Answer:

find 80 percent

Step-by-step explanation:

8 0

3 years ago

The LCD of 2/5, 3/2, and 1/2 is

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

the lowest number that 5 and 2 go into is 10 a quick way to find LCD is just to multiply the denominators and that just see if there is any smaller numbers

7 0

3 years ago

Find the value of x in the triangle shown below 2 10

OlgaM077 [116]

Answer:

the answer is A

Step-by-step explanation:

the Pythagorean theorem is a squared + b squared = c squared (c always being the hypotenuse and a and b being the legs. 2 (4) squared pus 10 (100) squared=104 then you would use the square root of 104. 104 does not have a whole number square so the answer is $\sqrt{104\\$