<em>6 + 7r - 4 </em>× <em>11
</em>=<em> 7r + (6-4) </em>× <em>11
= 14r+11</em>
Answer:
(x+1)(x-1)(x+3)(x-3)
Step-by-step explanation:
x4-10x^2+9
Group expression so that the coefficients of the x^2 terms add up to +9.
= x^4 -9x^2 - x^2+9
match coefficients in both groups
= x^4 -9x^2 - (x^2-9)
factor each group
= x^2 (x^2-9) - 1(x^2-9)
now factor out the common factor (x^2-9)
= (x^2-1)(x^2-9)
Finally, factor each quadratic factor
= (x+1)(x-1)(x+3)(x-3)
Its a. An enlargment on a scale of 3/1.
This may be a simple interest computation.
Simple Interest = Principal * interest rate * term
Principal = 1,000
interest rate = 3%
term = 2 years
Simple Interest = 1,000 * 0.03 * 2
Simple Interest = 60
Total Amount after 2 years: 1,000 + 60 = 1,060
