bhhzd3037 bhhzd3037
  • 02-10-2017
  • Mathematics
contestada

Multiplying by a conjugate gives a rational number because (a + b)(a -
b.= _____.

Respuesta :

kritter1
kritter1 kritter1
  • 02-10-2017
Use foil.

(a+b)(a–b)
a^2 -ab +ab -b^2
a^2 – b^2

Hope I helped :)
Answer Link

Otras preguntas

A like with slope = 1/2 passes through the points (2,5) and (x,3). What is the value of x? -1 1 -2 2
-40=m-5.5 solve and check
Mongol troops had a decided technological advantage over their enemies. describe the components of this technological advantage and how they enabled the mongols
Volume of 1 mole of N2 at 30 c and 1.2 ATM
An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 35 feet above ground (the major axis). What should the span of the b
How did different group of Americans help america win world war 1?
The area (in square inches) of a rectangle is given by the polynomial function A(y)=y^2+7y+12. If the length of the rectangle is (y+3) inches, what is the width
Which expression is equivalent to log18 – log(p + 2)?
A golfer hits a golf ball with a velocity of 36.0 meters/second at an angle of28.0°. If the hang time of the golf ball is 3.44 seconds, what is the range ofthe
Which tools do you use to measure mass, length, volume, and temperature?