Question

fractorise
$x ^{2} + 8x + 12$
$x ^{2} + 15x + 36$
$a ^{2} + 25a + 126 \\ y ^{2} + y - 56 \\ b ^{2} + 13b - 30 \\ a ^{2} - 17a - 138 \\ x ^{2} - 26x + 153 \\ y ^{2} - 16y + 55$
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Answer 1

Answer:

I can't understand your question