Usually simple substitutions enable such expressions to be seen as quadratic expressions. The substitutions x = a2 and y = b2 give a4 + b4 - 7a2b2 = x2 - 7xy + y2 which does not have any rational factors. Consequently, the quartic in a and b does not have rational factors.
No, A4 paper is not an example of the golden ratio. The golden ratio is a mathematical ratio of approximately 1.618:1, often found in art, architecture, and nature. A4 paper has dimensions of 210 mm × 297 mm, which do not align with the golden ratio. The aspect ratio of A4 paper is 1:√2, which is based on the ISO 216 standard for paper sizes.
If you mean a2 x a2... the answer is a4
Expand 4ab3 (a2b2-a-1)
Any sheet of paper in the An series - A4 being the most common size for printers and copiers.
( a2 ) ( a2+1 )
a5+b5 = (a+b) (a4-a3b+a2b2-ab3+b4)
the answer to factorising (a x a3 + 2ab + b2) would be (a4+2ab+b2)
All around Texas, a 'fully loaded' Audi A4 is going for a maximum of $44,100. If you're getting a price higher than that, you may want to look at what 'extras' the dealer is throwing in and make sure that's consistent with what you want in a 'fully loaded' Audi A4.
(a^2 + 8b)(a^2 - 5b)
Usually simple substitutions enable such expressions to be seen as quadratic expressions. The substitutions x = a2 and y = b2 give a4 + b4 - 7a2b2 = x2 - 7xy + y2 which does not have any rational factors. Consequently, the quartic in a and b does not have rational factors.
Fully synthetic. I go for Mobil 1
Unfortunately, limitations of the browser used by WA means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc.
3a4 - 2a2 + 5a - 10 - 2a4 + 4a2 + 5a - 2 = a4 + 2a2 + 10a - 12 = a4 + (2a - 2)(a + 6)
not sure of your model but on the A4 2001 model on the dash board under the rev counter there is a plus and a minus sign plus increases the brightness and the minus reduces
The A4 is equipped with a tri-burst mechanism- it can fire 3 shots per trigger pull.
The M16A4 is a select fire weapon, but is limited to three round bursts, the same way the M16A2 is.