Evaluate 5

Evaluate expression x2−7x+12x−4 when x=−1

Correct answer:

a =  -8

Step-by-step explanation:

x=1 a=x27 x+12 x4=(1)27 (1)+12 (1)4=8



Did you find an error or inaccuracy? Feel free to write us. Thank you!



Showing 1 comment:
#
Matematik
for any expression we offer free fraction or decimal calculator that can solve (substitute variables and expression with variables evaluation):

https://www.hackmath.net/en/calculator/fraction?input=Evaluate+x2%E2%88%927x%2B12x%E2%88%924+when+x%3D%E2%88%921&submit=Calculate

avatar









You need to know the following knowledge to solve this word math problem:

Related math problems and questions:

  • Eq2 2
    kardan3rd Solve following equation with quadratic members and rational function: (x2+1)/(x-4) + (x2-1)/(x+3) = 23
  • Simplify 3
    fractal Simplify mixed numerals expression: 8 1/4- 3 2/5 - (2 1/3 - 1/4) Show your solution.
  • Mixed numbers
    zlomky Rewrite mixed numbers, so the fractions have the same denominator: 5 1/5 - 2 2/3
  • Turtles 2
    turtles A box turtle hibernates in the sand at 11 5/8. A spotted turtle hibernates at 11 16/25 feet. Which turtle is deeper? Write answer as number 1 or 2.
  • Sum of fractions
    fractions What is the sum of 2/3+3/5?
  • Fraction + eq
    eq1 Solve following simple equation with fractions: -5/6(8+5b) = 75 + 5/3b
  • Equation 25
    eq1 Solve following simple equation: 3/4(x+5)=1/2(x+9)
  • Profit, revenue, cost
    bankovka Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x), if R(x) = 3x3 + 2x - 1 and C(x) = x4 - x2 + 2x + 3?
  • Evaluate expression
    plusminus If x=2, y=-5 and z=3 what is the value of x-2y
  • Boats
    ship Three-quarters of boats are white, 1/7 are blue and 9 are red. How many boats do we have?
  • Basketball team
    meter The heights of five starters on redwood high’s basketball team are 5’11”, 6’3”, 6’6”, 6’2” and 6’. The average of height of these players is?
  • My father
    tree3 My father has a big farm. 6/8 of it were planted with mango trees, 1/2 of the remainder are guava trees and the rest 10 trees are santol trees. What is the number of all trees?
  • Watching TV
    tv2 One evening 2/3 students watch TV. Of those students, 3/8 watched a reality show. Of the students that watched the show, 1/4 of them recorded it. What fraction of the students watched and recorded reality tv.
  • Trapezium internal angles
    lichob_2 A trapezium where AB is parallel to CD, has angle A : angle D = 4 :5, angle B = 3x-15 and angle C = 4x+20. Find angle A, B, C and D.
  • Domains of functions
    graph_quadratic F(x)=x2-7x and g(x)=5-x2 Domain of (fg)(x) is. .. . . Domain of (f/g)(x). ..
  • Equations
    p1110617 Solve following system of equations: 6(x+7)+4(y-5)=12 2(x+y)-3(-2x+4y)=-44
  • EQ2
    eq2 Solve quadratic equation: 2x²- 2(x-7)²+5x=0