Over a million students use our free study notes to help them with their homework
First you as both equations are = to y you can make them equal to eachother. 4x2 +5x +3 = x+ 2.Then you rearrange the equation to gather all the terms on one side and make the equati...
How would you solve x2+8x+16=81Show that this can be factorised (x+4)2=9Answered by • Maths tutor3212 Views
Multiple first fraction through by 2 and second fraction through by 3((2x+4)/6x) + ((3x-6)/6x) = (5x-2)/(6x) = 3Expand brackets and isolate x5x-2 = 18x13x = -2x = -2/13
Take away 3 from both sides to give you : 5x = 15Divide by 5 on both sides to give you : x = 3
To solve this, you need to find two factors of -15 that total to give -2. The solution we're looking for is of the for (x + something) (x + something)=0, as you can then solve each bracket to get two resu...
←
256
257
258
259
260
→
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
