Answer:
I would just recommend you using M A T H W A Y and paying for the measly little $9.99 for the step-by-step answers.
Step-by-step explanation:
Or desmos would work but I would highly recommend m a t h w a y
Answer:
( 9w - 2z)^2
Step-by-step explanation:
81w^2 - 36wz + 4z^2
Rewriting as
(9w)^2 - 2 * 9 w 2z + (2z)^2
We recognize that this is a perfect square binomial
a^2 -2ab + b^2 is a perfect square binomial because it factors to (a - b)^2
let a = 9w b = 2z
81w^2 - 36wz + 4z^2 = ( 9w - 2z)^2
The difference is the inequality symbol instead of the = there is a < > replacing it
129.701 in expanded form:
100 + 20 + 9 + (7 x 1/10) + (1 x 1/1000)
1 is in the hundreds place so 1 x 100 = 100
2 is in the tens place so 2 x 10 = 20
9 is in the ones place so 9 x 1 = 9
7 is in the tenths place so 7 x 1/10 = 0.7
1 is in the thousandths place so 1 x 1/1000 = 0.001
