exam Maths Puzzle Numerical Ability

How do you COMPLETELY FACTOR: x^2 + 10x + 21? whats the factored answer?

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exam Other Question

1. Rewrite with a rational exponent...
√(7&23)

2. Factor out the greatest common factor...
2x^6-10x^5+14x^4

3. Factor Completely...
24-11r+r^2

4. Find the x-intercepts...
24-11r+r^2
Perform the indicated operation.

5x / x - 1 MINUS 5 / x - 1


2x squared / x-4 MINUS 32 / x-4