ananya37933 ananya37933

16-07-2020
Mathematics

contestada

Using (x + a) (x + b) = x² + (a + b) x + ab, evaluate 75 x 77

Respuesta :

lucasella lucasella

16-07-2020

(x + a) (x + b) = x² + (a + b) x + ab

75 * 77=

=(70+5)(70+7)

=70²+(5+7)*70+5*7

=4900+12*70+35

=4900+840+35

=5775

Answer Link

Otras preguntas

If B is the midpoint of ac and the length of ac is 23.8, what is the length of ab A. 11.7 B. 11.9 C. 12.4 D. 19.1

The duty of the lighthouse keeper is to keep the light burning no matter what happens, so the ships will be warned of the presence of dangerous rocks. if a ship

me1120 week1 assignment

What two developments were most important to the invention and growth of railroads in Great Britain?

the economic system of most countries is a market economy

When The United States entered world war ll in Europe, where were American force first sent on a major offensive?

What are the domain and range of the real-valued function f(x)=2/3x? A. The domain is all real number except 0. The range is all real numbers except 0. B. The d

How do you think the experience of trauma influences a survivor's ability to make effective decisions?

the nobel prize winner Italian scientist who pioneered nuclear reactions was

After weeks of protest in zuccotti park, nyc's "occupy wall street" divided into two camps: one composed of higher income protestors, and one composed of lower-