Solve the expression (w - z)²
1 answer:
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Answer:
x = 17 and y = 37
Step-by-step explanation:
Let the numbers be x and y.
y = 3 + 2x
xy = 629
substituting y in the second equation we get
x(3+2x) = 629
3x + 2 = 629
2 + 3x - 629 = 0
Solving a quadratic equation by using its formula:
x = [-3 ±√(9-4(2)(-629)] / 4
x = [-3 ± √5041] / 4
x = [-3 ± 71] / 4
x = 17 and
Ignore the negative number in x and just use x = 17 in the first equation we get
y = 3 + 2(17) = 37
Answer:
B) 2
Step-by-step explanation:
Given expression,
48 ÷ ((2 + 6) × 2) − 1
In simplification we follows the following order,
B = Bracket
O = Of
D = Division
M = Multiplication
A = Addition,
S = Subtraction,
Thus, steps of solving the given expression by following BODMAS are as follow,
Hence, OPTION B is correct.