hannahmichelle
Answered

Westonci.ca is the premier destination for reliable answers to your questions, provided by a community of experts. Explore thousands of questions and answers from a knowledgeable community of experts on our user-friendly platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

solve the equation x(3x-8)=28

Sagot :

elisaselmani9
Simplifying x(3x + -8) = 28 Re-order the terms: x(-8 + 3x) = 28 (-8 * x + 3x * x) = 28 (-8x + 3x2) = 28 Solving -8x + 3x2 = 28 Solving for variable 'x'. Reorder the terms: -28 + -8x + 3x2 = 28 + -28 Combin like terms: 28 + -28 = 0 -28 + -8x + 3x2 = 0 Factor a trinomial. (-2 + -1x)(14 + -3x) = 0
Hope this helped :)
apologiabiology
first distibute ussing distributive property which is a(b+c)=ab+ac so x(3x-8)=28 3x^2-8x=28 subtract 28 from both sides 3x^2-8x-28=0 if you can factor it then you get xy=0 then x and/or y=0 so to factor multiply first term and last term together so 3 times -28=-84 now find what 2 numbers will multiply to get -84 and add to get -8 factors of -84 -2,41 -3,28 -4,21 -6,14 -7,12 now add them together and find which ones add to 8 or -8 -2,41=39 -3,28=25 -4,21=17 -6,14=8 -7,12=5 the numbers are -14 and 6 group 3x^2+6x-14x-28 group (3x^2+6x)+(-14x-28) reverse distribute which is ab+ac=a(b+c) (3x)(x+2)+(-14)(x+2) reverse distribute again (3x+(-14) times (x+2) (3x-14)(x+2)=0 set each to zero 3x-14=0 x+2=0 3x-14=0 add 14 to both sides 3x=14 divide boh tisdes by 3 x=14/3 x+2=0 subtract 2 from both sides x=-2 x=14/3 and -2
Thank you for visiting our platform. We hope you found the answers you were looking for. Come back anytime you need more information. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Discover more at Westonci.ca. Return for the latest expert answers and updates on various topics.