Factor.

9x^4−64y^2

Please hurry! 25 points for the right answer.

(3 x + 8 y) (3 x − 8 y)

Step-by-step explanation:

Rewrite 9 x 2 as (3 x) 2.

(3 x) 2 − 64 y 2 Rewrite 64 y 2 as (8 y) 2.

(3 x) 2 − (8 y) 2 Since both terms are perfect squares, factor using the difference of squares formula, a 2 − b 2 = (a + b) (a − b) where a = 3 x and b = 8 y.

(3 x + 8 y) (3 x − (8 y)) Multiply 8 by − 1.

(3 x + 8 y) (3 x − 8 y).

Hope this helps, have a nice day! :D

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6