In maths, for an expression to be called a binomial, this expression must:
1- have only two terms
2- exponents of the terms must only be positive integers (not fractions or negative integers)
3- if the two terms have the same variable, then the exponent of the variable in each term must be different from that of the other term
Note:
an expression with only one term is called monomial while an expression with only three terms is called trinomial
Comparing the definition of binomial to the given choices, we will find that the correct choice is:
c^2 - 16
Step-by-step explanation:
−2x+5y=−15 and 5x+2y=−6
Rewrite equations:
−2x+5y=−15;5x+2y=−6
Step: Solve−2x+5y=−15for x:
−2x+5y=−15
−2x+5y+−5y=−15+−5y(Add -5y to both sides)
−2x=−5y−15
−2x−2=−5y−15−2(Divide both sides by -2)
x=52y+152
Step: Substitute52y+152forxin5x+2y=−6:
5x+2y=−6
5(52y+152)+2y=−6
292y+752=−6(Simplify both sides of the equation)
292y+752+−752=−6+−752(Add (-75)/2 to both sides)
292y=−872
292y292=−872292(Divide both sides by 29/2)
y=−3
Step: Substitute−3foryinx=52y+152:
x=52y+152
x=52(−3)+152
x=0(Simplify both sides of the equation)
Answer:
x=0 and y=−3
Step-by-step explanation:
y = –3x –3
y = –2x –3
y = 2x –3
y = 3x –3
