dad2582 dad2582

02-12-2016
Mathematics

contestada

(3a2 + 2a - 2) - (a2 - 3a + 7)

Respuesta :

apologiabiology apologiabiology

02-12-2016

remember to distribute invibile -1
simlify 2nd part
-(a^2-3a+7)=-1(a^2-3a+7)=-a^2+3a-7

now we have
3a^2+2a-2-a^2+3a-7=
3a^2-a^2+2a+3a-2-7=
2a^2+5a-9

Answer Link

Otras preguntas

Who was the first female cabinet member

The truest representation of the earth is a polar projection true or false

How many milligrams remain of a 15.0 mg sample of radium-226 after 6396 years? The half life of radium-226 is 1599 years.

According to the inverse square law of light, how will the apparent brightness of an object change if its distance to us triples?

What does buddy's friend discover after flying her kite on their last Christmas Day together

At an aquarium, 6 out of 18 deliveries were plants. Out of 15 deliveries in one week, how many are plants?

Cytochalasin b is a chemical that disrupts microfilament formation. how would this interfere with cell division?

if a substance evaporates easy it is said to be ___? A) Changing pigmentation B)Volatile C)Condensing D)Crystallized

Help please graded and timed .........

Help me with these questions