izziel izziel
  • 22-05-2020
  • Mathematics
contestada

solve the equation -t^2+2t+15=0

Respuesta :

valerieulbrich
valerieulbrich valerieulbrich
  • 22-05-2020

Answer:

t=-3, t=5

Step-by-step explanation:

what 2 numbers multiply to -15 (A*C) and add to 2 (B)

5*-3

so the factor are (-t+5)(t+3)=0, set each factor equal to zero and solve.

-t+5=0, t=5

t+3=0, t=-3

Answer Link

Otras preguntas

Which describes oligarchy? A. rule by a king B. rule by the people C. rule by religious authorities D. rule by a small group
How do you say Tanner you are my bestfriend?
Who founded an empire that eventually spanned three continents - Africa, Asia, and Europe? A. Babur B. Ismail C. Osman D. Süleyman
? Which recent presidential candidate led one of the most successful independent campaigns? Al Gore Ross Perot Ronald Reagan Walter Mondale
John and Maria are spending the afternoon hiking in the desert. They purchased 6 bottles of water for $9.00, two protein bars for $5.00, and some peanuts for $3
What was the goal of the Gentleman's Agreement of 1907?
How many yards must you run to complete a 100 meter dash?
write a Distributive Property math problem
Two poetic devices mentioned in the lecture in addition to alliteration, assonance, and onomatopoeia are rhythm and ______
How do you write 26,373 in scientific notation?