You need the associative and commutative properties, but not the distributive property.
n*4n*9 =n*(4n*9) (associative)
= n*(9*4n) (commutative)
= n*(36n) (associative)
= 36n*n commutative
= 36*n^2
It is: 3n-21+4n+8 = 7n-13 simplified
4n is multiplied by 4n.
4 + 4n - 12 = 4n - 8
4n + 3 = 15 4n +3 - 3 = 15 - 3 4n = 12 4n/4 = 12/4 n = 3
4n-1 = 3
Follow these steps 1. Using distributive property, first, distribute 36 into 4n and 45 so : 36x4n - 36x5 that becomes (144n-180)45 2. Distribute 45 to 144n and 180 so: 45x144n- 45x180 that becomes 6480n-8100 3. SImply by dividing by 1620 4n-5 so your final answer is 4n-5
It is: 3n-21+4n+8 = 7n-13 simplified
Well, honey, it ain't rocket science. To multiply 4n by 2n, you simply multiply the coefficients (4 and 2) to get 8, and then multiply the variables (n and n) to get n^2. Put 'em together and you've got 8n^2. Easy peasy lemon squeezy!
F(n) = 4n
4n/7 + 8 = 20 subtract 8 from each side: 4n/7 = 12 multiply each side by 7: 4n = 84 n = 21
Equation
20n2+6n-2 (4n + 2)(5n -1) This problem can be solved by FOILing. First, multiply the first terms to get 20n2 Next, multiply the outside terms to get -4n. Multiplication of the inside terms results in 10n. Combining -4n and 10n (they are like terms) is 6n. Then, multiply the last terms, to get -2. Combining these answers into one equation gives the answer of 20n2+6n-2.
40- 4n = 88 SUBTRACT 40 from BOTH SIDES -4n = 48 multiply BOTH sides by -1 4n = -48 divide BOTH sides by 4 n = -12
4n+5
n-12+4n++2_3n
To find the nth number that is generated by the rule multiply n by 4 and then add 2.
4n is multiplied by 4n.