Practice A For use with pages 283-291 Solve the equation by finding square roots.
1. x2 + 2x + 1 = 9
3. x2 -
i
/= -It 3 I X = -V 4. x2 -- 10* + 25 = 4
5. x 2 - 14* + 49 = 7
6. x 2 + 20x + 100 = 12
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Find the value of c that makes the expression a perfect square trinomial. Then write the expression as a square of a binomial. 10.
/'^L\'Z
11. * 2 - 2 ; c + c
^ 12. x2 + l&c + c.
13.
24x + c
Z
14. x2 - Ux + c
15.
+c
.
d;f«0\/ ~ 17. x 2 + 7x + c
16. x2+x _.
1 1
-.
Solve the equation by completing the square.
is. j c * - 2 x - 2 = o
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Practice B For use with pages 283-291
Write the quadratic function in vertex form. Then identify the vertex.
26.
= x + 14* + 11
27. y = x2 - 8x + 10
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Answer Key 4.7 Practice A and 4.7 Practice B.pdf
Answer Key 4.7 Practice A and 4.7 Practice B.pdf. Answer Key 4.7 Practice A and 4.7 Practice B.pdf. Open. Extract. Open with. Sign In. Main menu. Displaying ...