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Komok [63]
4 years ago
8

Solve the quadratic equation X^2+3x-70=0

Mathematics
2 answers:
matrenka [14]4 years ago
4 0

Answer:

X can either be 7, or -10. You can prove this by plugging in the numbers yourself :)

Step-by-step explanation:

Please mark as brainliest

monitta4 years ago
4 0
First you Factor out x from the expression. Then Factor out (x+10) from the expression. Seprate into possible cases (When the product of factors equals 0, at least one factor is 0). Then solve the equations for x. This equation has two solutions x1=-10 and x2=7

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Maurinko [17]

We have been given a system of equations y=\frac{1}{2}x-4 and y=-2x-9. We are asked to find the solution of our given system of equations.

To solve our system of equations, we will equate both equations as:

\frac{1}{2}x-4=-2x-9

\frac{1}{2}x-4+4=-2x-9+4

\frac{1}{2}x=-2x-5

\frac{1}{2}x+2x=-2x+2x-5

\frac{1}{2}x+\frac{4}{2}x=-5

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7 0
3 years ago
Read 2 more answers
What is the sum of 1/4 and 3/8
Dafna11 [192]
\dfrac{1}{4}+\dfrac{3}{8}=(*)\\Find\ LCD\ (Least\ Common\ Denominator)\\list\ the\ multiples\\of\ 4:\ \ 0;\ 4;\ \fbox8;\ 12;...\\of\ 8:\ \ 0;\ \fbox8;\ 16;\ 24;\ ...\\LCD\left(\dfrac{1}{4};\ \dfrac{3}{8}\right)=8\\\\(*)=\dfrac{1\cdot2}{4\cdot2}+\dfrac{3}{8}=\dfrac{2}{8}+\dfrac{3}{8}=\dfrac{2+3}{8}=\dfrac{5}{8}
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Step-by-step explanation:

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Answer:

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