zayybhaddie
zayybhaddie zayybhaddie
  • 22-06-2021
  • History
contestada

If a = 3 and ab =15, then (a+b)^2-a^2-b^2=

Respuesta :

rakhip259
rakhip259 rakhip259
  • 22-06-2021

Answer: Is b=15 not ab=15

Explanation:

(a+b) ^2-a^2-b^2=(3+15)^2-3^2-15^2

=(18)^2-9-225

= 324-9-225

=90

Answer Link

Otras preguntas

The original selling price of a share of stock was d dollars. the selling price for a share of the same stock at a later date was represented by the expression
The leading cause of death in humans is ____.
The Himalayan Mountain system, which includes outlying sub ranges, stretches across six countries – Afghanistan, Bhutan, China, India, Nepal, and Pakistan. True
What is the mass in grams of 85.32 ml of blood plasma with a density of 1.03 g/ml?
Write an equation in slope-intercept form for points through (2, -7), parallel to 7x - 4y = 18
Esteban has a big jar of change in his room. He has 600 coins total, and 240 of them are pennies. What percentage of the coins are pennies?
A pizza has a diameter of 16 inches. What is the best approximation for the circumference of the pizza? Use 3.14 to approximate pi. A. 12.6 inches B. 25.1 inche
In a redox reaction, what happens to a substance's charge when it is reduced?
Solid lithium and chlorine gas are produced by the decomposition of solid lithium chloride . Write a balanced chemical equation for this reaction.
Name 5 short-term effects of alcohol.