162
162
They are: 2 times 81 = 162
Multiply and simplify 3^-2 x3^6
0.9^2=0.81 as 0.9^2=0.1*0.1*9*9=0.01*81=0.81 or 0.9 *0.9 -------- .81 .0 .0 0. ------- .81
How about: 8*81 = 648 or 2*324 = 648 out of many possibilities
245
You can multiple 9 x 9 to get 81
27 x 3 = 81
There are no two real numbers that will add to -9 and multiply to 81. Using complex numbers, the two numbers are: (-9/2 + i9/2√3) and (-9/2 - i9/2√3)
You multiply 0.27 x 81.
9 x 9 = 81 :(
A sum is the addition of two or more figures. For example, 2 + 7 = 9 The square of a sum can be written as (2 + 7)2 = 92 = 81 (2 + 7)2 can also be expressed as (2 + 7) x (2 + 7) When multiplying bracketed terms, multiply the first term in the first bracket by all the terms in the second bracket and then repeat this process with the second number in the first bracket. For example, (2 + 7) x (2 + 7) = 2x2 + 2x7 + 7x2 + 7x7 = 4 + 14 + 14 + 49 = 81