Over a million students use our free study notes to help them with their homework
To begin you must substitute the value of y provided into the first equation. The would change the equation into the following form:x^2+8(x+4)=20. Now expand the bracket so that the equation becomes:x^2+8...
y=x^x, taking natural log of both sidesln(y)=ln(x^x), using laws of logsln(y)=xln(x), using product rule and implicit differentiationdy/dx 1/y=ln(x)+1dy/dx=(ln(x)+1)ydy/dx=(l...
x^2 + 2y = 9y = x + 3x^2 + 2y = 9x^2 + 2(x+3) = 9x^2 + 2x + 6 = 9x^2 + 2x - 3 = 0(x + 3)(x - 1) = 0x= -3, x = 1when x = -3y = x + 3y = (-3) + 3y = 0when x = 1y = x + 3y = (1) + 3y = 4
If we say n is any number, then we know 2n represents an even number - any number multiplied by 2 is always even. 2n+1 represents an odd...
(3x2 - 8x - 3) / 2x2 - 6x == (3x + 1)(x - 3) / 2x2 - 6x == (3x + 1)(x - 3) / 2x(x-3) == 3x+1 / 2x
←
296
297
298
299
300
→
Internet Safety
Payment Security
Cyber
Essentials
Comprehensive K-12 personalized learning
Immersive learning for 25 languages
Trusted tutors for 300 subjects
35,000 worksheets, games, and lesson plans
Adaptive learning for English vocabulary
Fast and accurate language certification
Essential reference for synonyms and antonyms
Comprehensive resource for word definitions and usage
Spanish-English dictionary, translator, and learning resources
French-English dictionary, translator, and learning
Diccionario ingles-espanol, traductor y sitio de apremdizaje
Fun educational games for kids
