So x+y=-14
xy=-240
x+y=-14
subtract y from both sides
x=-14-y
subsitute for x in second equation
(-14-y)y=-240
multiply
-y^2-14y=-240
add y^2+14y to both sides
0=y^2+14y-240
use quadratic equation to solve which is
if you have ax^2+bx+c so
a=1
b=14
c=-240
subsitute and get
(+/- means that there are 2 equations exg 2+/-8=2+8 and 2-8)
the numbers are 10 and -24
Answer: A) x + 4x = 35; 7 large stones and 28 small stones
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Explanation:
x = number of large stones
4x = number of small stones
x+4x = total number of stones = 35
x+4x = 35 is the equation to solve
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Let's isolate x
x+4x = 35
5x = 35
x = 35/5
x = 7 large stones are needed
4x = 4*7 = 28 small stones are needed
<h2>Answer:</h2>
This method is applied for dividing polynomials by binomials of the form . These are the steps you must follows:
a) Take the coefficients of and write them down in order.
b) Copy the leftmost coefficient to the bottom. Hence the first coefficient of the quotient is the same first coefficient of the dividend.
c) Add terms in vertical patterns and multiply by in diagonal patterns.
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The figures below show those steps. Thus, we can write the polynomial p(x) = d(x)q(x) + r(x) in the form:
Maybe a yard or a foot of wood or smt i’m sorry if i’m not that helpful but i tried stay safe guysss :))